21322260220012 has 96 divisors (see below), whose sum is σ = 38692367400960. Its totient is φ = 10276537340160.

The previous prime is 21322260219983. The next prime is 21322260220039. The reversal of 21322260220012 is 21002206222312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1164696163 + ... + 1164714469.

It is an arithmetic number, because the mean of its divisors is an integer number (403045493760).

Almost surely, 2^{21322260220012} is an apocalyptic number.

It is an amenable number.

21322260220012 is a deficient number, since it is larger than the sum of its proper divisors (17370107180948).

21322260220012 is a wasteful number, since it uses less digits than its factorization.

21322260220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911 (or 18909 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21322260220012 its reverse (21002206222312), we get a palindrome (42324466442324).

The spelling of 21322260220012 in words is "twenty-one trillion, three hundred twenty-two billion, two hundred sixty million, two hundred twenty thousand, twelve".