21313320010122 has 32 divisors (see below), whose sum is σ = 49071752445312. Its totient is φ = 6045070950144.

The previous prime is 21313320010063. The next prime is 21313320010127. The reversal of 21313320010122 is 22101002331312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (21313320010127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852038043 + ... + 1852049550.

It is an arithmetic number, because the mean of its divisors is an integer number (1533492263916).

Almost surely, 2^{21313320010122} is an apocalyptic number.

21313320010122 is an abundant number, since it is smaller than the sum of its proper divisors (27758432435190).

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

21313320010122 is a wasteful number, since it uses less digits than its factorization.

21313320010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704087742.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21313320010122 its reverse (22101002331312), we get a palindrome (43414322341434).

The spelling of 21313320010122 in words is "twenty-one trillion, three hundred thirteen billion, three hundred twenty million, ten thousand, one hundred twenty-two".