30120121122 has 64 divisors (see below), whose sum is σ = 74216674560. Its totient is φ = 7935750144.

The previous prime is 30120121117. The next prime is 30120121133. The reversal of 30120121122 is 22112102103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523578 + ... + 578250.

It is an arithmetic number, because the mean of its divisors is an integer number (1159635540).

Almost surely, 2^30120121122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30120121122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37108337280).

30120121122 is an abundant number, since it is smaller than the sum of its proper divisors (44096553438).

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

30120121122 is a wasteful number, since it uses less digits than its factorization.

30120121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55707.

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

Adding to 30120121122 its reverse (22112102103), we get a palindrome (52232223225).

The spelling of 30120121122 in words is "thirty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".