121607707100 has 72 divisors (see below), whose sum is σ = 287933893968. Its totient is φ = 44212492800.

The previous prime is 121607707057. The next prime is 121607707181. The reversal of 121607707100 is 1707706121.

It is a happy number.

It is a super-2 number, since 2×121607707100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10066664 + ... + 10078736.

Almost surely, 2^121607707100 is an apocalyptic number.

121607707100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121607707100 is an abundant number, since it is smaller than the sum of its proper divisors (166326186868).

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

121607707100 is a wasteful number, since it uses less digits than its factorization.

121607707100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21255 (or 21248 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 32.

The spelling of 121607707100 in words is "one hundred twenty-one billion, six hundred seven million, seven hundred seven thousand, one hundred".