1021100000022 has 24 divisors (see below), whose sum is σ = 2214811890720. Its totient is φ = 339993042480.

The previous prime is 1021099999993. The next prime is 1021100000057. The reversal of 1021100000022 is 2200000011201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31118497 + ... + 31151292.

It is an arithmetic number, because the mean of its divisors is an integer number (92283828780).

Almost surely, 2^{1021100000022} is an apocalyptic number.

1021100000022 is an abundant number, since it is smaller than the sum of its proper divisors (1193711890698).

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

1021100000022 is a wasteful number, since it uses less digits than its factorization.

1021100000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62270708 (or 62270705 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1021100000022 its reverse (2200000011201), we get a palindrome (3221100011223).

The spelling of 1021100000022 in words is "one trillion, twenty-one billion, one hundred million, twenty-two", and thus it is an aban number.