21704922667130 has 64 divisors (see below), whose sum is σ = 41517204023808. Its totient is φ = 8141654615040.

The previous prime is 21704922667039. The next prime is 21704922667133. The reversal of 21704922667130 is 3176622940712.

21704922667130 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21704922667130² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21704922667133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51569519 + ... + 51988701.

It is an arithmetic number, because the mean of its divisors is an integer number (648706312872).

Almost surely, 2^{21704922667130} is an apocalyptic number.

21704922667130 is a deficient number, since it is larger than the sum of its proper divisors (19812281356678).

21704922667130 is a wasteful number, since it uses less digits than its factorization.

21704922667130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420311.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 21704922667130 in words is "twenty-one trillion, seven hundred four billion, nine hundred twenty-two million, six hundred sixty-seven thousand, one hundred thirty".