22100000022 has 24 divisors (see below), whose sum is σ = 47886087600. Its totient is φ = 7366242960.

The previous prime is 22100000003. The next prime is 22100000029. The reversal of 22100000022 is 22000000122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100000029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537247 + ... + 576917.

It is an arithmetic number, because the mean of its divisors is an integer number (1995253650).

Almost surely, 2^22100000022 is an apocalyptic number.

22100000022 is an abundant number, since it is smaller than the sum of its proper divisors (25786087578).

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

22100000022 is a wasteful number, since it uses less digits than its factorization.

22100000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70628 (or 70625 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22100000022 its reverse (22000000122), we get a palindrome (44100000144).

The spelling of 22100000022 in words is "twenty-two billion, one hundred million, twenty-two", and thus it is an aban number.