21322322310212 has 24 divisors (see below), whose sum is σ = 46521430495680. Its totient is φ = 8307398302560.

The previous prime is 21322322310203. The next prime is 21322322310217. The reversal of 21322322310212 is 21201322322312.

It is not an unprimeable number, because it can be changed into a prime (21322322310217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34614159287 + ... + 34614159902.

It is an arithmetic number, because the mean of its divisors is an integer number (1938392937320).

Almost surely, 2^{21322322310212} is an apocalyptic number.

21322322310212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21322322310212 is an abundant number, since it is smaller than the sum of its proper divisors (25199108185468).

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

21322322310212 is a wasteful number, since it uses less digits than its factorization.

21322322310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69228319211 (or 69228319209 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21322322310212 its reverse (21201322322312), we get a palindrome (42523644632524).

It can be divided in two parts, 2132232 and 2310212, that added together give a palindrome (4442444).

The spelling of 21322322310212 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred twenty-two million, three hundred ten thousand, two hundred twelve".