122406556 has 24 divisors (see below), whose sum is σ = 218139264. Its totient is φ = 60088560.

The previous prime is 122406553. The next prime is 122406563. The reversal of 122406556 is 655604221.

It is a super-2 number, since 2×122406556² = 29966729903562272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122406553) 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, 79611 + ... + 81133.

It is an arithmetic number, because the mean of its divisors is an integer number (9089136).

Almost surely, 2^122406556 is an apocalyptic number.

It is an amenable number.

122406556 is a deficient number, since it is larger than the sum of its proper divisors (95732708).

122406556 is a wasteful number, since it uses less digits than its factorization.

122406556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 122406556 is about 11063.7496356344. The cubic root of 122406556 is about 496.5178806513.

The spelling of 122406556 in words is "one hundred twenty-two million, four hundred six thousand, five hundred fifty-six".