202001022021122 has 8 divisors (see below), whose sum is σ = 320825152621836. Its totient is φ = 95059304480512.

The previous prime is 202001022021101. The next prime is 202001022021143. The reversal of 202001022021122 is 221120220100202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202001022021101) and next prime (202001022021143).

It can be written as a sum of positive squares in 2 ways, for example, as 160323939524281 + 41677082496841 = 12661909^2 + 6455779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 202001022021122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2970603264983 + ... + 2970603265050.

Almost surely, 2^{202001022021122} is an apocalyptic number.

202001022021122 is a deficient number, since it is larger than the sum of its proper divisors (118824130600714).

202001022021122 is a wasteful number, since it uses less digits than its factorization.

202001022021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941206530052.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202001022021122 its reverse (221120220100202), we get a palindrome (423121242121324).

The spelling of 202001022021122 in words is "two hundred two trillion, one billion, twenty-two million, twenty-one thousand, one hundred twenty-two".