2021112122202 has 16 divisors (see below), whose sum is σ = 4491360271680. Its totient is φ = 673704040716.

The previous prime is 2021112122201. The next prime is 2021112122219. The reversal of 2021112122202 is 2022212111202.

It is a happy number.

2021112122202 is a `hidden beast` number, since 20 + 211 + 1 + 212 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2021112122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18714001078 + ... + 18714001185.

It is an arithmetic number, because the mean of its divisors is an integer number (280710016980).

Almost surely, 2^{2021112122202} is an apocalyptic number.

2021112122202 is an abundant number, since it is smaller than the sum of its proper divisors (2470248149478).

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

2021112122202 is a wasteful number, since it uses less digits than its factorization.

2021112122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37428002274 (or 37428002268 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2021112122202 its reverse (2022212111202), we get a palindrome (4043324233404).

The spelling of 2021112122202 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred two".