21311320200022 has 16 divisors (see below), whose sum is σ = 31974354403920. Its totient is φ = 10653202264032.

The previous prime is 21311320200017. The next prime is 21311320200029. The reversal of 21311320200022 is 22000202311312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311320200029) 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, 338302504 + ... + 338365492.

It is an arithmetic number, because the mean of its divisors is an integer number (1998397150245).

Almost surely, 2^{21311320200022} is an apocalyptic number.

21311320200022 is a deficient number, since it is larger than the sum of its proper divisors (10663034203898).

21311320200022 is a wasteful number, since it uses less digits than its factorization.

21311320200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99327.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21311320200022 its reverse (22000202311312), we get a palindrome (43311522511334).

The spelling of 21311320200022 in words is "twenty-one trillion, three hundred eleven billion, three hundred twenty million, two hundred thousand, twenty-two".