122621371255 has 32 divisors (see below), whose sum is σ = 156163350528. Its totient is φ = 92268720000.

The previous prime is 122621371253. The next prime is 122621371267. The reversal of 122621371255 is 552173126221.

It is not a de Polignac number, because 122621371255 - 2¹ = 122621371253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621371253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5626630 + ... + 5648380.

It is an arithmetic number, because the mean of its divisors is an integer number (4880104704).

Almost surely, 2^122621371255 is an apocalyptic number.

122621371255 is a deficient number, since it is larger than the sum of its proper divisors (33541979273).

122621371255 is a wasteful number, since it uses less digits than its factorization.

122621371255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22807.

The product of its digits is 50400, while the sum is 37.

Adding to 122621371255 its reverse (552173126221), we get a palindrome (674794497476).

The spelling of 122621371255 in words is "one hundred twenty-two billion, six hundred twenty-one million, three hundred seventy-one thousand, two hundred fifty-five".