21132234441629 has 2 divisors, whose sum is σ = 21132234441630. Its totient is φ = 21132234441628.

The previous prime is 21132234441589. The next prime is 21132234441649. The reversal of 21132234441629 is 92614443223112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14935983384100 + 6196251057529 = 3864710^2 + 2489227^2 .

It is a cyclic number.

It is not a de Polignac number, because 21132234441629 - 2¹⁶ = 21132234376093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21132234441629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21132234441649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566117220814 + 10566117220815.

It is an arithmetic number, because the mean of its divisors is an integer number (10566117220815).

Almost surely, 2^{21132234441629} is an apocalyptic number.

It is an amenable number.

21132234441629 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132234441629 is an equidigital number, since it uses as much as digits as its factorization.

21132234441629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 44.

The spelling of 21132234441629 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred thirty-four million, four hundred forty-one thousand, six hundred twenty-nine".