30331012122 has 12 divisors (see below), whose sum is σ = 65717192970. Its totient is φ = 10110337368.

The previous prime is 30331012097. The next prime is 30331012133. The reversal of 30331012122 is 22121013303.

It can be written as a sum of positive squares in only one way, i.e., 26798017401 + 3532994721 = 163701^2 + 59439^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1685056229 = 30331012122 / (3 + 0 + 3 + 3 + 1 + 0 + 1 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30331012095 and 30331012104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842528097 + ... + 842528132.

Almost surely, 2^30331012122 is an apocalyptic number.

30331012122 is an abundant number, since it is smaller than the sum of its proper divisors (35386180848).

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

30331012122 is a wasteful number, since it uses less digits than its factorization.

30331012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685056237 (or 1685056234 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30331012122 its reverse (22121013303), we get a palindrome (52452025425).

The spelling of 30331012122 in words is "thirty billion, three hundred thirty-one million, twelve thousand, one hundred twenty-two".