122122556 has 12 divisors (see below), whose sum is σ = 216725040. Its totient is φ = 60201120.

The previous prime is 122122531. The next prime is 122122579. The reversal of 122122556 is 655221221.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214721 + ... + 215288.

It is an arithmetic number, because the mean of its divisors is an integer number (18060420).

Almost surely, 2^122122556 is an apocalyptic number.

It is an amenable number.

122122556 is a deficient number, since it is larger than the sum of its proper divisors (94602484).

122122556 is a wasteful number, since it uses less digits than its factorization.

122122556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430084 (or 430082 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 122122556 is about 11050.9074740494. The cubic root of 122122556 is about 496.1335867635.

Adding to 122122556 its reverse (655221221), we get a palindrome (777343777).

The spelling of 122122556 in words is "one hundred twenty-two million, one hundred twenty-two thousand, five hundred fifty-six".