22102220002122 has 24 divisors (see below), whose sum is σ = 51571846672164. Its totient is φ = 6800683077504.

The previous prime is 22102220002091. The next prime is 22102220002129. The reversal of 22102220002122 is 22120002220122.

It can be written as a sum of positive squares in 2 ways, for example, as 21630675472641 + 471544529481 = 4650879^2 + 686691^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22102220002095 and 22102220002104.

It is not an unprimeable number, because it can be changed into a prime (22102220002129) 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, 47226965583 + ... + 47226966050.

Almost surely, 2^{22102220002122} is an apocalyptic number.

22102220002122 is an abundant number, since it is smaller than the sum of its proper divisors (29469626670042).

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

22102220002122 is a wasteful number, since it uses less digits than its factorization.

22102220002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94453931654 (or 94453931651 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22102220002122 its reverse (22120002220122), we get a palindrome (44222222222244).

The spelling of 22102220002122 in words is "twenty-two trillion, one hundred two billion, two hundred twenty million, two thousand, one hundred twenty-two".