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121202212010 = 25111963799091
BaseRepresentation
bin111000011100000110…
…1101111110010101010
3102120211210100022100012
41300320031233302222
53441210231241020
6131402440011522
711520334542455
oct1607015576252
9376753308305
10121202212010
1147446541870
121b5a6460ba2
13b5772a4619
145c1ac9049c
1532457cb7c5
hex1c3836fcaa

121202212010 has 64 divisors (see below), whose sum is σ = 250590067200. Its totient is φ = 41742734400.

The previous prime is 121202211997. The next prime is 121202212031. The reversal of 121202212010 is 10212202121.

It is a super-2 number, since 2×1212022120102 (a number of 23 digits) contains 22 as substring.

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, 13327565 + ... + 13336655.

It is an arithmetic number, because the mean of its divisors is an integer number (3915469800).

Almost surely, 2121202212010 is an apocalyptic number.

121202212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202212010 is an abundant number, since it is smaller than the sum of its proper divisors (129387855190).

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

121202212010 is a wasteful number, since it uses less digits than its factorization.

121202212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15507.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121202212010 its reverse (10212202121), we get a palindrome (131414414131).

The spelling of 121202212010 in words is "one hundred twenty-one billion, two hundred two million, two hundred twelve thousand, ten".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 1045 2090 6379 9091 12758 18182 31895 45455 63790 70169 90910 100001 121201 140338 172729 200002 242402 345458 350845 500005 606005 701690 863645 1000010 1212010 1333211 1727290 1900019 2666422 3800038 6666055 9500095 13332110 19000190 57991489 115982978 289957445 579914890 637906379 1101838291 1275812758 2203676582 3189531895 5509191455 6379063790 11018382910 12120221201 24240442402 60601106005 121202212010