22100000011020 has 72 divisors (see below), whose sum is σ = 67727766410304. Its totient is φ = 5832577317888.

The previous prime is 22100000011003. The next prime is 22100000011021. The reversal of 22100000011020 is 2011000000122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22100000010993 and 22100000011011.

It is not an unprimeable number, because it can be changed into a prime (22100000011021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632857684 + ... + 632892603.

Almost surely, 2^{22100000011020} is an apocalyptic number.

22100000011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100000011020 is an abundant number, since it is smaller than the sum of its proper divisors (45627766399284).

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

22100000011020 is a wasteful number, since it uses less digits than its factorization.

22100000011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265750399 (or 1265750394 counting only the distinct ones).

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

Adding to 22100000011020 its reverse (2011000000122), we get a palindrome (24111000011142).

The spelling of 22100000011020 in words is "twenty-two trillion, one hundred billion, eleven thousand, twenty".