202100110220220 has 96 divisors (see below), whose sum is σ = 599175526392576. Its totient is φ = 50722475750400.

The previous prime is 202100110220171. The next prime is 202100110220233. The reversal of 202100110220220 is 22022011001202.

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 202100110220220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75937455 + ... + 78553785.

It is an arithmetic number, because the mean of its divisors is an integer number (6241411733256).

Almost surely, 2^{202100110220220} is an apocalyptic number.

202100110220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202100110220220 is an abundant number, since it is smaller than the sum of its proper divisors (397075416172356).

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

202100110220220 is a wasteful number, since it uses less digits than its factorization.

202100110220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692091 (or 2692089 counting only the distinct ones).

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

Adding to 202100110220220 its reverse (22022011001202), we get a palindrome (224122121221422).

The spelling of 202100110220220 in words is "two hundred two trillion, one hundred billion, one hundred ten million, two hundred twenty thousand, two hundred twenty".