22331240312 has 64 divisors (see below), whose sum is σ = 42819840000. Its totient is φ = 10916066304.

The previous prime is 22331240311. The next prime is 22331240329. The reversal of 22331240312 is 21304213322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331240311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44395853 + ... + 44396355.

It is an arithmetic number, because the mean of its divisors is an integer number (669060000).

Almost surely, 2^22331240312 is an apocalyptic number.

It is an amenable number.

22331240312 is a deficient number, since it is larger than the sum of its proper divisors (20488599688).

22331240312 is a wasteful number, since it uses less digits than its factorization.

22331240312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22331240312 its reverse (21304213322), we get a palindrome (43635453634).

The spelling of 22331240312 in words is "twenty-two billion, three hundred thirty-one million, two hundred forty thousand, three hundred twelve".