21112666330402 has 16 divisors (see below), whose sum is σ = 33335878595040. Its totient is φ = 10000709787168.

The previous prime is 21112666330391. The next prime is 21112666330451. The reversal of 21112666330402 is 20403366621112.

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, 26066493 + ... + 26864239.

It is an arithmetic number, because the mean of its divisors is an integer number (2083492412190).

Almost surely, 2^{21112666330402} is an apocalyptic number.

21112666330402 is a deficient number, since it is larger than the sum of its proper divisors (12223212264638).

21112666330402 is a wasteful number, since it uses less digits than its factorization.

21112666330402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494225.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 21112666330402 in words is "twenty-one trillion, one hundred twelve billion, six hundred sixty-six million, three hundred thirty thousand, four hundred two".