22100021122 has 16 divisors (see below), whose sum is σ = 33278909112. Its totient is φ = 11007077760.

The previous prime is 22100021107. The next prime is 22100021159. The reversal of 22100021122 is 22112000122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21033410841 + 1066610281 = 145029^2 + 32659^2 .

It is a super-2 number, since 2×22100021122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2781868 + ... + 2789800.

Almost surely, 2^22100021122 is an apocalyptic number.

22100021122 is a deficient number, since it is larger than the sum of its proper divisors (11178887990).

22100021122 is a wasteful number, since it uses less digits than its factorization.

22100021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13173.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100021122 its reverse (22112000122), we get a palindrome (44212021244).

The spelling of 22100021122 in words is "twenty-two billion, one hundred million, twenty-one thousand, one hundred twenty-two".