21133302994 has 16 divisors (see below), whose sum is σ = 32796780120. Its totient is φ = 10201125760.

The previous prime is 21133302979. The next prime is 21133303001. The reversal of 21133302994 is 49920333112.

It can be written as a sum of positive squares in 4 ways, for example, as 20032722369 + 1100580625 = 141537^2 + 33175^2 .

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, 723024 + ... + 751684.

Almost surely, 2^21133302994 is an apocalyptic number.

21133302994 is a deficient number, since it is larger than the sum of its proper divisors (11663477126).

21133302994 is a wasteful number, since it uses less digits than its factorization.

21133302994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41405.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 21133302994 in words is "twenty-one billion, one hundred thirty-three million, three hundred two thousand, nine hundred ninety-four".