21102646441122 has 24 divisors (see below), whose sum is σ = 46958141181276. Its totient is φ = 6844101548256.

The previous prime is 21102646441033. The next prime is 21102646441199. The reversal of 21102646441122 is 22114464620112.

21102646441122 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 2 + 6 + 4 + 644 + 1 + 1 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14915731443921 + 6186914997201 = 3862089^2 + 2487351^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15842826993 + ... + 15842828324.

Almost surely, 2^{21102646441122} is an apocalyptic number.

21102646441122 is an abundant number, since it is smaller than the sum of its proper divisors (25855494740154).

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

21102646441122 is a wasteful number, since it uses less digits than its factorization.

21102646441122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31685655362 (or 31685655359 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 21102646441122 in words is "twenty-one trillion, one hundred two billion, six hundred forty-six million, four hundred forty-one thousand, one hundred twenty-two".