22100110020 has 36 divisors (see below), whose sum is σ = 67037000940. Its totient is φ = 5893362624.

The previous prime is 22100110001. The next prime is 22100110033. The reversal of 22100110020 is 2001100122.

It can be written as a sum of positive squares in 2 ways, for example, as 3855664836 + 18244445184 = 62094^2 + 135072^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×22100110020² (a number of 21 digits) contains 22 as substring.

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 = 22100109984 and 22100110011.

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, 61389015 + ... + 61389374.

It is an arithmetic number, because the mean of its divisors is an integer number (1862138915).

Almost surely, 2^22100110020 is an apocalyptic number.

22100110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100110020 is an abundant number, since it is smaller than the sum of its proper divisors (44936890920).

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

22100110020 is a wasteful number, since it uses less digits than its factorization.

22100110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122778404 (or 122778399 counting only the distinct ones).

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

Adding to 22100110020 its reverse (2001100122), we get a palindrome (24101210142).

The spelling of 22100110020 in words is "twenty-two billion, one hundred million, one hundred ten thousand, twenty".