22121020022202 has 24 divisors (see below), whose sum is σ = 47979810733140. Its totient is φ = 7365837337920.

The previous prime is 22121020022197. The next prime is 22121020022203. The reversal of 22121020022202 is 20222002012122.

22121020022202 is a `hidden beast` number, since 221 + 21 + 0 + 200 + 2 + 220 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21579193006281 + 541827015921 = 4645341^2 + 736089^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22121020022203) 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, 652982827 + ... + 653016702.

Almost surely, 2^{22121020022202} is an apocalyptic number.

22121020022202 is an abundant number, since it is smaller than the sum of its proper divisors (25858790710938).

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

22121020022202 is a wasteful number, since it uses less digits than its factorization.

22121020022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306000478 (or 1306000475 counting only the distinct ones).

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

Adding to 22121020022202 its reverse (20222002012122), we get a palindrome (42343022034324).

The spelling of 22121020022202 in words is "twenty-two trillion, one hundred twenty-one billion, twenty million, twenty-two thousand, two hundred two".