11202221112020 has 24 divisors (see below), whose sum is σ = 24908468120424. Its totient is φ = 4217306771456.

The previous prime is 11202221112007. The next prime is 11202221112127. The reversal of 11202221112020 is 2021112220211.

It can be written as a sum of positive squares in 4 ways, for example, as 100516897936 + 11101704214084 = 317044^2 + 3331922^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 11202221112020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16473854237 + ... + 16473854916.

It is an arithmetic number, because the mean of its divisors is an integer number (1037852838351).

Almost surely, 2^{11202221112020} is an apocalyptic number.

11202221112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11202221112020 is an abundant number, since it is smaller than the sum of its proper divisors (13706247008404).

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

11202221112020 is a wasteful number, since it uses less digits than its factorization.

11202221112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32947709179 (or 32947709177 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11202221112020 its reverse (2021112220211), we get a palindrome (13223333332231).

The spelling of 11202221112020 in words is "eleven trillion, two hundred two billion, two hundred twenty-one million, one hundred twelve thousand, twenty".