122879221 has 8 divisors (see below), whose sum is σ = 125101440. Its totient is φ = 120671712.

The previous prime is 122879209. The next prime is 122879227. The reversal of 122879221 is 122978221.

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 122879221 - 2⁵ = 122879189 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 (122879227) 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, 13926 + ... + 20968.

It is an arithmetic number, because the mean of its divisors is an integer number (15637680).

Almost surely, 2^122879221 is an apocalyptic number.

It is an amenable number.

122879221 is a deficient number, since it is larger than the sum of its proper divisors (2222219).

122879221 is an equidigital number, since it uses as much as digits as its factorization.

122879221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its digits is 8064, while the sum is 34.

The square root of 122879221 is about 11085.0900312086. The cubic root of 122879221 is about 497.1561503714.

The spelling of 122879221 in words is "one hundred twenty-two million, eight hundred seventy-nine thousand, two hundred twenty-one".