122102202221 has 4 divisors (see below), whose sum is σ = 122424372000. Its totient is φ = 121780032444.

The previous prime is 122102202199. The next prime is 122102202241. The reversal of 122102202221 is 122202201221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122202201221 = 31 ⋅3942006491.

It is a cyclic number.

It is not a de Polignac number, because 122102202221 - 2²⁶ = 122035093357 is a prime.

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 122102202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102202241) 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, 161084321 + ... + 161085078.

It is an arithmetic number, because the mean of its divisors is an integer number (30606093000).

Almost surely, 2^122102202221 is an apocalyptic number.

It is an amenable number.

122102202221 is a deficient number, since it is larger than the sum of its proper divisors (322169779).

122102202221 is an equidigital number, since it uses as much as digits as its factorization.

122102202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322169778.

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

Adding to 122102202221 its reverse (122202201221), we get a palindrome (244304403442).

The spelling of 122102202221 in words is "one hundred twenty-two billion, one hundred two million, two hundred two thousand, two hundred twenty-one".