21132300022231 has 4 divisors (see below), whose sum is σ = 21172861059264. Its totient is φ = 21091738985200.

The previous prime is 21132300022213. The next prime is 21132300022247. The reversal of 21132300022231 is 13222000323112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21132300022231 - 2⁷ = 21132300022103 is a prime.

It is a super-2 number, since 2×21132300022231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132300622231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20280517735 + ... + 20280518776.

It is an arithmetic number, because the mean of its divisors is an integer number (5293215264816).

Almost surely, 2^{21132300022231} is an apocalyptic number.

21132300022231 is a deficient number, since it is larger than the sum of its proper divisors (40561037033).

21132300022231 is an equidigital number, since it uses as much as digits as its factorization.

21132300022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40561037032.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21132300022231 its reverse (13222000323112), we get a palindrome (34354300345343).

The spelling of 21132300022231 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred million, twenty-two thousand, two hundred thirty-one".