12722155255 has 24 divisors (see below), whose sum is σ = 16460953056. Its totient is φ = 9421093440.

The previous prime is 12722155249. The next prime is 12722155297. The reversal of 12722155255 is 55255122721.

It is a happy number.

It is not a de Polignac number, because 12722155255 - 2¹¹ = 12722153207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52957 + ... + 168073.

It is an arithmetic number, because the mean of its divisors is an integer number (685873044).

Almost surely, 2^12722155255 is an apocalyptic number.

12722155255 is a deficient number, since it is larger than the sum of its proper divisors (3738797801).

12722155255 is a wasteful number, since it uses less digits than its factorization.

12722155255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115207 (or 115176 counting only the distinct ones).

The product of its digits is 70000, while the sum is 37.

Adding to 12722155255 its reverse (55255122721), we get a palindrome (67977277976).

The spelling of 12722155255 in words is "twelve billion, seven hundred twenty-two million, one hundred fifty-five thousand, two hundred fifty-five".