121121020210120 has 64 divisors (see below), whose sum is σ = 319871729076480. Its totient is φ = 40404849981696.

The previous prime is 121121020210103. The next prime is 121121020210147. The reversal of 121121020210120 is 21012020121121.

121121020210120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121121020210094 and 121121020210103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5845598724 + ... + 5845619443.

It is an arithmetic number, because the mean of its divisors is an integer number (4997995766820).

Almost surely, 2^{121121020210120} is an apocalyptic number.

121121020210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121121020210120 is an abundant number, since it is smaller than the sum of its proper divisors (198750708866360).

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

121121020210120 is a wasteful number, since it uses less digits than its factorization.

121121020210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691218222 (or 11691218218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121121020210120 its reverse (21012020121121), we get a palindrome (142133040331241).

The spelling of 121121020210120 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty million, two hundred ten thousand, one hundred twenty".