30312202212 has 24 divisors (see below), whose sum is σ = 78587191200. Its totient is φ = 10104067368.

The previous prime is 30312202187. The next prime is 30312202229. The reversal of 30312202212 is 21220221303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140334162 + ... + 140334377.

It is an arithmetic number, because the mean of its divisors is an integer number (3274466300).

Almost surely, 2^30312202212 is an apocalyptic number.

It is an amenable number.

30312202212 is an abundant number, since it is smaller than the sum of its proper divisors (48274988988).

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

30312202212 is a wasteful number, since it uses less digits than its factorization.

30312202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280668552 (or 280668544 counting only the distinct ones).

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

Adding to 30312202212 its reverse (21220221303), we get a palindrome (51532423515).

The spelling of 30312202212 in words is "thirty billion, three hundred twelve million, two hundred two thousand, two hundred twelve".