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102111201201200 = 245210712971839457
BaseRepresentation
bin10111001101111010011101…
…111000000000110000110000
3111101112201212011211200220012
4113031322131320000300300
5101340442220001414300
61001101123243234052
730336201520231142
oct2715723570006060
9441481764750805
10102111201201200
112a599132054334
12b551a02818928
1344c90779cc349
141b302cc208c92
15bc123006b435
hex5cde9de00c30

102111201201200 has 120 divisors (see below), whose sum is σ = 247805939641392. Its totient is φ = 40431537192960.

The previous prime is 102111201201187. The next prime is 102111201201221. The reversal of 102111201201200 is 2102102111201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54591872 + ... + 56431328.

Almost surely, 2102111201201200 is an apocalyptic number.

102111201201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102111201201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123902969820696).

102111201201200 is an abundant number, since it is smaller than the sum of its proper divisors (145694738440192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102111201201200 is a wasteful number, since it uses less digits than its factorization.

102111201201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840879 (or 1840868 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102111201201200 its reverse (2102102111201), we get a palindrome (104213303312401).

The spelling of 102111201201200 in words is "one hundred two trillion, one hundred eleven billion, two hundred one million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 107 200 214 400 428 535 856 1070 1297 1712 2140 2594 2675 4280 5188 5350 6485 8560 10376 10700 12970 20752 21400 25940 32425 42800 51880 64850 103760 129700 138779 259400 277558 518800 555116 693895 1110232 1387790 1839457 2220464 2775580 3469475 3678914 5551160 6938950 7357828 9197285 11102320 13877900 14715656 18394570 27755800 29431312 36789140 45986425 55511600 73578280 91972850 147156560 183945700 196821899 367891400 393643798 735782800 787287596 984109495 1574575192 1968218990 2385775729 3149150384 3936437980 4771551458 4920547475 7872875960 9543102916 9841094950 11928878645 15745751920 19086205832 19682189900 23857757290 38172411664 39364379800 47715514580 59644393225 78728759600 95431029160 119288786450 190862058320 238577572900 255278003003 477155145800 510556006006 954310291600 1021112012012 1276390015015 2042224024024 2552780030030 4084448048048 5105560060060 6381950075075 10211120120120 12763900150150 20422240240240 25527800300300 51055600600600 102111201201200