21322188819606 has 16 divisors (see below), whose sum is σ = 43245002677248. Its totient is φ = 7007292100200.

The previous prime is 21322188819593. The next prime is 21322188819637. The reversal of 21322188819606 is 60691888122312.

It is a super-2 number, since 2×21322188819606² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25026042790 + ... + 25026043641.

It is an arithmetic number, because the mean of its divisors is an integer number (2702812667328).

Almost surely, 2^{21322188819606} is an apocalyptic number.

21322188819606 is an abundant number, since it is smaller than the sum of its proper divisors (21922813857642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21322188819606 is a wasteful number, since it uses less digits than its factorization.

21322188819606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50052086507.

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 21322188819606 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred eighty-eight million, eight hundred nineteen thousand, six hundred six".