2021220022099 has 12 divisors (see below), whose sum is σ = 2071717736256. Its totient is φ = 1971925729872.

The previous prime is 2021220022069. The next prime is 2021220022141. The reversal of 2021220022099 is 9902200221202.

It is not a de Polignac number, because 2021220022099 - 2¹⁵ = 2021219989331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021220022099.

It is not an unprimeable number, because it can be changed into a prime (2021220022049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 962349 + ... + 2229025.

It is an arithmetic number, because the mean of its divisors is an integer number (172643144688).

Almost surely, 2^{2021220022099} is an apocalyptic number.

2021220022099 is a deficient number, since it is larger than the sum of its proper divisors (50497714157).

2021220022099 is an equidigital number, since it uses as much as digits as its factorization.

2021220022099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267626 (or 1267583 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 2021220022099 in words is "two trillion, twenty-one billion, two hundred twenty million, twenty-two thousand, ninety-nine".