21223100102231 has 16 divisors (see below), whose sum is σ = 21566894727168. Its totient is φ = 20880109192800.

The previous prime is 21223100102213. The next prime is 21223100102273. The reversal of 21223100102231 is 13220100132212.

It is a cyclic number.

It is not a de Polignac number, because 21223100102231 - 2⁶ = 21223100102167 is a prime.

It is a super-2 number, since 2×21223100102231² (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 (21223100102201) 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, 360031946 + ... + 360090888.

It is an arithmetic number, because the mean of its divisors is an integer number (1347930920448).

Almost surely, 2^{21223100102231} is an apocalyptic number.

21223100102231 is a deficient number, since it is larger than the sum of its proper divisors (343794624937).

21223100102231 is an equidigital number, since it uses as much as digits as its factorization.

21223100102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65662.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21223100102231 its reverse (13220100132212), we get a palindrome (34443200234443).

The spelling of 21223100102231 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred million, one hundred two thousand, two hundred thirty-one".