22231001312 has 48 divisors (see below), whose sum is σ = 47163905712. Its totient is φ = 10253952000.

The previous prime is 22231001311. The next prime is 22231001321. The reversal of 22231001312 is 21310013222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231001311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673187 + ... + 705437.

It is an arithmetic number, because the mean of its divisors is an integer number (982581369).

Almost surely, 2^22231001312 is an apocalyptic number.

It is an amenable number.

22231001312 is an abundant number, since it is smaller than the sum of its proper divisors (24932904400).

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

22231001312 is a wasteful number, since it uses less digits than its factorization.

22231001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931 (or 33923 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22231001312 its reverse (21310013222), we get a palindrome (43541014534).

The spelling of 22231001312 in words is "twenty-two billion, two hundred thirty-one million, one thousand, three hundred twelve".