122121255 has 16 divisors (see below), whose sum is σ = 196568064. Its totient is φ = 64740000.

The previous prime is 122121253. The next prime is 122121257. The reversal of 122121255 is 552121221.

It is an interprime number because it is at equal distance from previous prime (122121253) and next prime (122121257).

It is not a de Polignac number, because 122121255 - 2¹ = 122121253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121253) 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, 21871 + ... + 26880.

It is an arithmetic number, because the mean of its divisors is an integer number (12285504).

Almost surely, 2^122121255 is an apocalyptic number.

122121255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122121255 is a deficient number, since it is larger than the sum of its proper divisors (74446809).

122121255 is a wasteful number, since it uses less digits than its factorization.

122121255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48926.

The product of its digits is 400, while the sum is 21.

The square root of 122121255 is about 11050.8486099485. The cubic root of 122121255 is about 496.1318249484.

Adding to 122121255 its reverse (552121221), we get a palindrome (674242476).

The spelling of 122121255 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred fifty-five".