30310222233172 has 24 divisors (see below), whose sum is σ = 60623087970816. Its totient is φ = 12989528777568.

The previous prime is 30310222233139. The next prime is 30310222233173. The reversal of 30310222233172 is 27133222201303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310222233173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22948843 + ... + 24233650.

It is an arithmetic number, because the mean of its divisors is an integer number (2525961998784).

Almost surely, 2^{30310222233172} is an apocalyptic number.

It is an amenable number.

30310222233172 is an abundant number, since it is smaller than the sum of its proper divisors (30312865737644).

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

30310222233172 is a wasteful number, since it uses less digits than its factorization.

30310222233172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47205447 (or 47205445 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 30310222233172 its reverse (27133222201303), we get a palindrome (57443444434475).

The spelling of 30310222233172 in words is "thirty trillion, three hundred ten billion, two hundred twenty-two million, two hundred thirty-three thousand, one hundred seventy-two".