21059688695012 has 24 divisors (see below), whose sum is σ = 40205528892480. Its totient is φ = 9572426566560.

The previous prime is 21059688694997. The next prime is 21059688695039.

21059688695012 is nontrivially palindromic in base 10.

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, 1283888 + ... + 6615719.

It is an arithmetic number, because the mean of its divisors is an integer number (1675230370520).

Almost surely, 2^{21059688695012} is an apocalyptic number.

21059688695012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21059688695012 is a deficient number, since it is larger than the sum of its proper divisors (19145840197468).

21059688695012 is a wasteful number, since it uses less digits than its factorization.

21059688695012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960211 (or 7960209 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 62.

The spelling of 21059688695012 in words is "twenty-one trillion, fifty-nine billion, six hundred eighty-eight million, six hundred ninety-five thousand, twelve".