121021022120 has 64 divisors (see below), whose sum is σ = 286676712000. Its totient is φ = 45852922368.

The previous prime is 121021022107. The next prime is 121021022131. The reversal of 121021022120 is 21220120121.

It is a junction number, because it is equal to n+sod(n) for n = 121021022095 and 121021022104.

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, 6863876 + ... + 6881484.

It is an arithmetic number, because the mean of its divisors is an integer number (4479323625).

Almost surely, 2^121021022120 is an apocalyptic number.

121021022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121021022120 is an abundant number, since it is smaller than the sum of its proper divisors (165655689880).

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

121021022120 is a wasteful number, since it uses less digits than its factorization.

121021022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26682 (or 26678 counting only the distinct ones).

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

Adding to 121021022120 its reverse (21220120121), we get a palindrome (142241142241).

The spelling of 121021022120 in words is "one hundred twenty-one billion, twenty-one million, twenty-two thousand, one hundred twenty".