21112001000022 has 16 divisors (see below), whose sum is σ = 44707766823792. Its totient is φ = 6623372862720.

The previous prime is 21112001000003. The next prime is 21112001000071. The reversal of 21112001000022 is 22000010021112.

It is a junction number, because it is equal to n+sod(n) for n = 21112000999971 and 21112001000007.

It is a congruent 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, 103490200879 + ... + 103490201082.

It is an arithmetic number, because the mean of its divisors is an integer number (2794235426487).

Almost surely, 2^{21112001000022} is an apocalyptic number.

21112001000022 is an abundant number, since it is smaller than the sum of its proper divisors (23595765823770).

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

21112001000022 is a wasteful number, since it uses less digits than its factorization.

21112001000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206980401983.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21112001000022 its reverse (22000010021112), we get a palindrome (43112011021134).

The spelling of 21112001000022 in words is "twenty-one trillion, one hundred twelve billion, one million, twenty-two", and thus it is an aban number.