21132622127 has 2 divisors, whose sum is σ = 21132622128. Its totient is φ = 21132622126.

The previous prime is 21132622109. The next prime is 21132622129. The reversal of 21132622127 is 72122623112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21132622127 - 2²⁸ = 20864186671 is a prime.

Together with 21132622129, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21132622127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21132622129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566311063 + 10566311064.

It is an arithmetic number, because the mean of its divisors is an integer number (10566311064).

Almost surely, 2^21132622127 is an apocalyptic number.

21132622127 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132622127 is an equidigital number, since it uses as much as digits as its factorization.

21132622127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The spelling of 21132622127 in words is "twenty-one billion, one hundred thirty-two million, six hundred twenty-two thousand, one hundred twenty-seven".