122202321121 has 4 divisors (see below), whose sum is σ = 122300162500. Its totient is φ = 122104479744.

The previous prime is 122202321113. The next prime is 122202321151. The reversal of 122202321121 is 121123202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121123202221 = 7 ⋅17303314603.

It can be written as a sum of positive squares in 2 ways, for example, as 91590969600 + 30611351521 = 302640^2 + 174961^2 .

It is a cyclic number.

It is not a de Polignac number, because 122202321121 - 2³ = 122202321113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122202321151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48918816 + ... + 48921313.

It is an arithmetic number, because the mean of its divisors is an integer number (30575040625).

Almost surely, 2^122202321121 is an apocalyptic number.

It is an amenable number.

122202321121 is a deficient number, since it is larger than the sum of its proper divisors (97841379).

122202321121 is an equidigital number, since it uses as much as digits as its factorization.

122202321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97841378.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122202321121 its reverse (121123202221), we get a palindrome (243325523342).

The spelling of 122202321121 in words is "one hundred twenty-two billion, two hundred two million, three hundred twenty-one thousand, one hundred twenty-one".