122102221 has 8 divisors (see below), whose sum is σ = 123235200. Its totient is φ = 120974832.

The previous prime is 122102203. The next prime is 122102231. The reversal of 122102221 is 122201221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122102221 - 2¹⁹ = 121577933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51171 + ... + 53503.

It is an arithmetic number, because the mean of its divisors is an integer number (15404400).

Almost surely, 2^122102221 is an apocalyptic number.

It is an amenable number.

122102221 is a deficient number, since it is larger than the sum of its proper divisors (1132979).

122102221 is a wasteful number, since it uses less digits than its factorization.

122102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122102221 is about 11049.9873755584. The cubic root of 122102221 is about 496.1060476617.

Adding to 122102221 its reverse (122201221), we get a palindrome (244303442).

The spelling of 122102221 in words is "one hundred twenty-two million, one hundred two thousand, two hundred twenty-one".