22231202312 has 32 divisors (see below), whose sum is σ = 45500015520. Its totient is φ = 10099069440.

The previous prime is 22231202303. The next prime is 22231202321. The reversal of 22231202312 is 21320213222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22231202303) and next prime (22231202321).

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, 74903 + ... + 223769.

It is an arithmetic number, because the mean of its divisors is an integer number (1421875485).

Almost surely, 2^22231202312 is an apocalyptic number.

22231202312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22231202312 is an abundant number, since it is smaller than the sum of its proper divisors (23268813208).

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

22231202312 is a wasteful number, since it uses less digits than its factorization.

22231202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150581 (or 150577 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22231202312 its reverse (21320213222), we get a palindrome (43551415534).

The spelling of 22231202312 in words is "twenty-two billion, two hundred thirty-one million, two hundred two thousand, three hundred twelve".