122122200202021 has 24 divisors (see below), whose sum is σ = 137271194472960. Its totient is φ = 108319043289600.

The previous prime is 122122200201979. The next prime is 122122200202099. The reversal of 122122200202021 is 120202002221221.

It is not a de Polignac number, because 122122200202021 - 2¹⁵ = 122122200169253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 122122200202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122200202621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57172240 + ... + 59269801.

It is an arithmetic number, because the mean of its divisors is an integer number (5719633103040).

Almost surely, 2^{122122200202021} is an apocalyptic number.

It is an amenable number.

122122200202021 is a deficient number, since it is larger than the sum of its proper divisors (15148994270939).

122122200202021 is a wasteful number, since it uses less digits than its factorization.

122122200202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116442285 (or 116442268 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122122200202021 its reverse (120202002221221), we get a palindrome (242324202423242).

The spelling of 122122200202021 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, two hundred million, two hundred two thousand, twenty-one".