122555611 has 4 divisors (see below), whose sum is σ = 122704632. Its totient is φ = 122406592.

The previous prime is 122555597. The next prime is 122555639. The reversal of 122555611 is 116555221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116555221 = 233 ⋅500237.

It is a cyclic number.

It is not a de Polignac number, because 122555611 - 2⁷ = 122555483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122555611.

It is not an unprimeable number, because it can be changed into a prime (122555311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73270 + ... + 74923.

It is an arithmetic number, because the mean of its divisors is an integer number (30676158).

Almost surely, 2^122555611 is an apocalyptic number.

122555611 is a deficient number, since it is larger than the sum of its proper divisors (149021).

122555611 is an equidigital number, since it uses as much as digits as its factorization.

122555611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149020.

The product of its digits is 3000, while the sum is 28.

The square root of 122555611 is about 11070.4837744337. The cubic root of 122555611 is about 496.7193362358.

The spelling of 122555611 in words is "one hundred twenty-two million, five hundred fifty-five thousand, six hundred eleven".