21132202322405 has 16 divisors (see below), whose sum is σ = 25381912765440. Its totient is φ = 16890253840512.

The previous prime is 21132202322377. The next prime is 21132202322513. The reversal of 21132202322405 is 50422320223112.

It is a cyclic number.

It is not a de Polignac number, because 21132202322405 - 2⁴⁴ = 3540016277989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31845641 + ... + 32502449.

It is an arithmetic number, because the mean of its divisors is an integer number (1586369547840).

Almost surely, 2^{21132202322405} is an apocalyptic number.

It is an amenable number.

21132202322405 is a deficient number, since it is larger than the sum of its proper divisors (4249710443035).

21132202322405 is a wasteful number, since it uses less digits than its factorization.

21132202322405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662708.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 21132202322405 its reverse (50422320223112), we get a palindrome (71554522545517).

The spelling of 21132202322405 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred two million, three hundred twenty-two thousand, four hundred five".