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121333012212 = 22397112392821
BaseRepresentation
bin111000100000000000…
…0101101011011110100
3102121011220110122111010
41301000000231123310
53441442222342322
6131423431312220
711523513405246
oct1610000553364
9377156418433
10121333012212
114750335aa05
121b62221b670
13b5984103a9
145c303bc096
15325201720c
hex1c4002d6f4

121333012212 has 48 divisors (see below), whose sum is σ = 286286810432. Its totient is φ = 39991311360.

The previous prime is 121333012193. The next prime is 121333012219. The reversal of 121333012212 is 212210333121.

It is a super-2 number, since 2×1213330122122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333012219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260762 + ... + 1353582.

Almost surely, 2121333012212 is an apocalyptic number.

121333012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121333012212 is an abundant number, since it is smaller than the sum of its proper divisors (164953798220).

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

121333012212 is a wasteful number, since it uses less digits than its factorization.

121333012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94048 (or 94046 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121333012212 its reverse (212210333121), we get a palindrome (333543345333).

The spelling of 121333012212 in words is "one hundred twenty-one billion, three hundred thirty-three million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 97 194 291 388 582 1123 1164 2246 3369 4492 6738 13476 92821 108931 185642 217862 278463 326793 371284 435724 556926 653586 1113852 1307172 9003637 18007274 27010911 36014548 54021822 104237983 108043644 208475966 312713949 416951932 625427898 1250855796 10111084351 20222168702 30333253053 40444337404 60666506106 121333012212