30122322012 has 48 divisors (see below), whose sum is σ = 78868154400. Its totient is φ = 9941356800.

The previous prime is 30122321987. The next prime is 30122322037. The reversal of 30122322012 is 21022322103.

It is an interprime number because it is at equal distance from previous prime (30122321987) and next prime (30122322037).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 1369837 + ... + 1391652.

It is an arithmetic number, because the mean of its divisors is an integer number (1643086550).

Almost surely, 2^30122322012 is an apocalyptic number.

It is an amenable number.

30122322012 is an abundant number, since it is smaller than the sum of its proper divisors (48745832388).

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

30122322012 is a wasteful number, since it uses less digits than its factorization.

30122322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761603 (or 2761595 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30122322012 its reverse (21022322103), we get a palindrome (51144644115).

Subtracting from 30122322012 its reverse (21022322103), we obtain a palindrome (9099999909).

The spelling of 30122322012 in words is "thirty billion, one hundred twenty-two million, three hundred twenty-two thousand, twelve".