21112020001158 has 16 divisors (see below), whose sum is σ = 42269985649920. Its totient is φ = 7029682392456.

The previous prime is 21112020001073. The next prime is 21112020001159. The reversal of 21112020001158 is 85110002021112.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112020001159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914396010 + ... + 1914407037.

It is an arithmetic number, because the mean of its divisors is an integer number (2641874103120).

Almost surely, 2^{21112020001158} is an apocalyptic number.

21112020001158 is an abundant number, since it is smaller than the sum of its proper divisors (21157965648762).

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

21112020001158 is a wasteful number, since it uses less digits than its factorization.

21112020001158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828803971.

The product of its (nonzero) digits is 320, while the sum is 24.

The spelling of 21112020001158 in words is "twenty-one trillion, one hundred twelve billion, twenty million, one thousand, one hundred fifty-eight".