21111332200994 has 24 divisors (see below), whose sum is σ = 36837476101008. Its totient is φ = 9047626453320.

The previous prime is 21111332200993. The next prime is 21111332201017. The reversal of 21111332200994 is 49900223311112.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21111332200993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9729257 + ... + 11699619.

It is an arithmetic number, because the mean of its divisors is an integer number (1534894837542).

Almost surely, 2^{21111332200994} is an apocalyptic number.

21111332200994 is a deficient number, since it is larger than the sum of its proper divisors (15726143900014).

21111332200994 is a wasteful number, since it uses less digits than its factorization.

21111332200994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079710 (or 2079703 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 21111332200994 in words is "twenty-one trillion, one hundred eleven billion, three hundred thirty-two million, two hundred thousand, nine hundred ninety-four".