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12020221211010 = 23513923599122147
BaseRepresentation
bin1010111011101010110100…
…0000111111000110000010
31120120010021212212001111120
42232322231000333012002
53033414403112223020
641322002520453110
72350301200325325
oct256725500770602
946503255761446
1012020221211010
113914824563a41
12142172391a196
1369266ab6a1bc
142d7ad34087bc
1515ca182d5740
hexaeead03f182

12020221211010 has 64 divisors (see below), whose sum is σ = 29057543424000. Its totient is φ = 3182171044032.

The previous prime is 12020221210979. The next prime is 12020221211039. The reversal of 12020221211010 is 1011212202021.

12020221211010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×120202212110102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98346757 + ... + 98468903.

It is an arithmetic number, because the mean of its divisors is an integer number (454024116000).

Almost surely, 212020221211010 is an apocalyptic number.

12020221211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020221211010 is an abundant number, since it is smaller than the sum of its proper divisors (17037322212990).

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

12020221211010 is a wasteful number, since it uses less digits than its factorization.

12020221211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145895.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12020221211010 its reverse (1011212202021), we get a palindrome (13031433413031).

The spelling of 12020221211010 in words is "twelve trillion, twenty billion, two hundred twenty-one million, two hundred eleven thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 139 278 417 695 834 1390 2085 4170 23599 47198 70797 117995 122147 141594 235990 244294 353985 366441 610735 707970 732882 1221470 1832205 3280261 3664410 6560522 9840783 16401305 16978433 19681566 32802610 33956866 49203915 50935299 84892165 98407830 101870598 169784330 254676495 509352990 2882547053 5765094106 8647641159 14412735265 17295282318 28825470530 43238205795 86476411590 400674040367 801348080734 1202022121101 2003370201835 2404044242202 4006740403670 6010110605505 12020221211010