21100110000022 has 4 divisors (see below), whose sum is σ = 31650165000036. Its totient is φ = 10550055000010.

The previous prime is 21100110000019. The next prime is 21100110000031. The reversal of 21100110000022 is 22000001100112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 21100109999963 and 21100110000008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275027500004 + ... + 5275027500007.

It is an arithmetic number, because the mean of its divisors is an integer number (7912541250009).

Almost surely, 2^{21100110000022} is an apocalyptic number.

21100110000022 is a deficient number, since it is larger than the sum of its proper divisors (10550055000014).

21100110000022 is a wasteful number, since it uses less digits than its factorization.

21100110000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550055000013.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21100110000022 its reverse (22000001100112), we get a palindrome (43100111100134).

The spelling of 21100110000022 in words is "twenty-one trillion, one hundred billion, one hundred ten million, twenty-two", and thus it is an aban number.