122012555 has 16 divisors (see below), whose sum is σ = 167603904. Its totient is φ = 83529600.

The previous prime is 122012551. The next prime is 122012557. The reversal of 122012555 is 555210221.

It is not a de Polignac number, because 122012555 - 2² = 122012551 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 122012555.

It is not an unprimeable number, because it can be changed into a prime (122012551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22049 + ... + 27021.

It is an arithmetic number, because the mean of its divisors is an integer number (10475244).

Almost surely, 2^122012555 is an apocalyptic number.

122012555 is a deficient number, since it is larger than the sum of its proper divisors (45591349).

122012555 is an equidigital number, since it uses as much as digits as its factorization.

122012555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 122012555 is about 11045.9293407119. The cubic root of 122012555 is about 495.9845791143.

Adding to 122012555 its reverse (555210221), we get a palindrome (677222776).

The spelling of 122012555 in words is "one hundred twenty-two million, twelve thousand, five hundred fifty-five".