22331012 has 12 divisors (see below), whose sum is σ = 42632016. Its totient is φ = 10150440.

The previous prime is 22331003. The next prime is 22331021. The reversal of 22331012 is 21013322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22331003) and next prime (22331021).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253718 + ... + 253805.

It is an arithmetic number, because the mean of its divisors is an integer number (3552668).

Almost surely, 2^22331012 is an apocalyptic number.

22331012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22331012 is a deficient number, since it is larger than the sum of its proper divisors (20301004).

22331012 is a wasteful number, since it uses less digits than its factorization.

22331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507538 (or 507536 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22331012 is about 4725.5700185269. The cubic root of 22331012 is about 281.6022593924.

Adding to 22331012 its reverse (21013322), we get a palindrome (43344334).

It can be divided in two parts, 223310 and 12, that added together give a palindrome (223322).

The spelling of 22331012 in words is "twenty-two million, three hundred thirty-one thousand, twelve".