102200021122220 has 72 divisors (see below), whose sum is σ = 249763350747456. Its totient is φ = 35025509116416.

The previous prime is 102200021122201. The next prime is 102200021122289. The reversal of 102200021122220 is 22221120002201.

It is a happy 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, 19204724 + ... + 23942043.

It is an arithmetic number, because the mean of its divisors is an integer number (3468935427048).

Almost surely, 2^{102200021122220} is an apocalyptic number.

102200021122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102200021122220 is an abundant number, since it is smaller than the sum of its proper divisors (147563329625236).

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

102200021122220 is a wasteful number, since it uses less digits than its factorization.

102200021122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43149207 (or 43149198 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102200021122220 its reverse (22221120002201), we get a palindrome (124421141124421).

The spelling of 102200021122220 in words is "one hundred two trillion, two hundred billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty".