121002202100120 has 32 divisors (see below), whose sum is σ = 297005405155920. Its totient is φ = 44000800763520.

The previous prime is 121002202100111. The next prime is 121002202100173. The reversal of 121002202100120 is 21001202200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002202100095 and 121002202100104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137502501947 + ... + 137502502826.

Almost surely, 2^{121002202100120} is an apocalyptic number.

121002202100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002202100120 is an abundant number, since it is smaller than the sum of its proper divisors (176003203055800).

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

121002202100120 is a wasteful number, since it uses less digits than its factorization.

121002202100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275005004795 (or 275005004791 counting only the distinct ones).

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

Adding to 121002202100120 its reverse (21001202200121), we get a palindrome (142003404300241).

The spelling of 121002202100120 in words is "one hundred twenty-one trillion, two billion, two hundred two million, one hundred thousand, one hundred twenty".