22201220120022 has 48 divisors (see below), whose sum is σ = 49117508285040. Its totient is φ = 7245753613056.

The previous prime is 22201220120011. The next prime is 22201220120113. The reversal of 22201220120022 is 22002102210222.

22201220120022 is a `hidden beast` number, since 2 + 220 + 1 + 220 + 1 + 200 + 22 = 666.

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 = 22201220119977 and 22201220120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61483872 + ... + 61843907.

It is an arithmetic number, because the mean of its divisors is an integer number (1023281422605).

Almost surely, 2^{22201220120022} is an apocalyptic number.

22201220120022 is an abundant number, since it is smaller than the sum of its proper divisors (26916288165018).

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

22201220120022 is a wasteful number, since it uses less digits than its factorization.

22201220120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123327997 (or 123327994 counting only the distinct ones).

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

Adding to 22201220120022 its reverse (22002102210222), we get a palindrome (44203322330244).

The spelling of 22201220120022 in words is "twenty-two trillion, two hundred one billion, two hundred twenty million, one hundred twenty thousand, twenty-two".