220200021122100 has 72 divisors (see below), whose sum is σ = 670644274873440. Its totient is φ = 55629479018880.

The previous prime is 220200021122093. The next prime is 220200021122101. The reversal of 220200021122100 is 1221120002022.

It is a super-2 number, since 2×220200021122100² (a number of 29 digits) contains 22 as substring.

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 220200021122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200021122101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19315785627 + ... + 19315797026.

Almost surely, 2^{220200021122100} is an apocalyptic number.

220200021122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220200021122100 is an abundant number, since it is smaller than the sum of its proper divisors (450444253751340).

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

220200021122100 is a wasteful number, since it uses less digits than its factorization.

220200021122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631582689 (or 38631582682 counting only the distinct ones).

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

Adding to 220200021122100 its reverse (1221120002022), we get a palindrome (221421141124122).

The spelling of 220200021122100 in words is "two hundred twenty trillion, two hundred billion, twenty-one million, one hundred twenty-two thousand, one hundred".