122879216 has 10 divisors (see below), whose sum is σ = 238078512. Its totient is φ = 61439600.

The previous prime is 122879209. The next prime is 122879227. The reversal of 122879216 is 612978221.

It is a self number, because there is not a number n which added to its sum of digits gives 122879216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3839960 + ... + 3839991.

Almost surely, 2^122879216 is an apocalyptic number.

122879216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122879216 is a deficient number, since it is larger than the sum of its proper divisors (115199296).

122879216 is an equidigital number, since it uses as much as digits as its factorization.

122879216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679959 (or 7679953 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 122879216 is about 11085.0898056804. The cubic root of 122879216 is about 497.1561436282.

The spelling of 122879216 in words is "one hundred twenty-two million, eight hundred seventy-nine thousand, two hundred sixteen".