2021222202202 has 12 divisors (see below), whose sum is σ = 3526826495850. Its totient is φ = 866238086616.

The previous prime is 2021222202179. The next prime is 2021222202287. The reversal of 2021222202202 is 2022022221202.

It can be written as a sum of positive squares in only one way, i.e., 2020096532601 + 1125669601 = 1421301^2 + 33551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2021222202202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10312358077 + ... + 10312358272.

Almost surely, 2^{2021222202202} is an apocalyptic number.

2021222202202 is a deficient number, since it is larger than the sum of its proper divisors (1505604293648).

2021222202202 is a wasteful number, since it uses less digits than its factorization.

2021222202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20624716365 (or 20624716358 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2021222202202 its reverse (2022022221202), we get a palindrome (4043244423404).

The spelling of 2021222202202 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred two thousand, two hundred two".