22201220100120 has 64 divisors (see below), whose sum is σ = 66630593524320. Its totient is φ = 5917931295744.

The previous prime is 22201220100109. The next prime is 22201220100167. The reversal of 22201220100120 is 2100102210222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22201220100120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37109259 + ... + 37702778.

Almost surely, 2^{22201220100120} is an apocalyptic number.

22201220100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201220100120 is an abundant number, since it is smaller than the sum of its proper divisors (44429373424200).

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

22201220100120 is a wasteful number, since it uses less digits than its factorization.

22201220100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74814524 (or 74814520 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22201220100120 its reverse (2100102210222), we get a palindrome (24301322310342).

The spelling of 22201220100120 in words is "twenty-two trillion, two hundred one billion, two hundred twenty million, one hundred thousand, one hundred twenty".