121122013020 has 24 divisors (see below), whose sum is σ = 339141636624. Its totient is φ = 32299203456.

The previous prime is 121122013007. The next prime is 121122013027. The reversal of 121122013020 is 20310221121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122013027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009350049 + ... + 1009350168.

It is an arithmetic number, because the mean of its divisors is an integer number (14130901526).

Almost surely, 2^121122013020 is an apocalyptic number.

121122013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122013020 is an abundant number, since it is smaller than the sum of its proper divisors (218019623604).

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

121122013020 is a wasteful number, since it uses less digits than its factorization.

121122013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018700229 (or 2018700227 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121122013020 its reverse (20310221121), we get a palindrome (141432234141).

The spelling of 121122013020 in words is "one hundred twenty-one billion, one hundred twenty-two million, thirteen thousand, twenty".