21112212000194 has 16 divisors (see below), whose sum is σ = 37765944448128. Its totient is φ = 8654695602432.

The previous prime is 21112212000181. The next prime is 21112212000221. The reversal of 21112212000194 is 49100021221112.

It is a super-2 number, since 2×21112212000194² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

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, 32782937567 + ... + 32782938210.

It is an arithmetic number, because the mean of its divisors is an integer number (2360371528008).

Almost surely, 2^{21112212000194} is an apocalyptic number.

21112212000194 is a deficient number, since it is larger than the sum of its proper divisors (16653732447934).

21112212000194 is a wasteful number, since it uses less digits than its factorization.

21112212000194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65565875809.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 21112212000194 in words is "twenty-one trillion, one hundred twelve billion, two hundred twelve million, one hundred ninety-four", and thus it is an aban number.