123456222255 has 16 divisors (see below), whose sum is σ = 197662295520. Its totient is φ = 65799205248.

The previous prime is 123456222221. The next prime is 123456222287. The reversal of 123456222255 is 552222654321.

It is not a de Polignac number, because 123456222255 - 2⁶ = 123456222191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2733940 + ... + 2778729.

It is an arithmetic number, because the mean of its divisors is an integer number (12353893470).

Almost surely, 2^123456222255 is an apocalyptic number.

123456222255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123456222255 is a deficient number, since it is larger than the sum of its proper divisors (74206073265).

123456222255 is a wasteful number, since it uses less digits than its factorization.

123456222255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514170.

The product of its digits is 288000, while the sum is 39.

Adding to 123456222255 its reverse (552222654321), we get a palindrome (675678876576).

The spelling of 123456222255 in words is "one hundred twenty-three billion, four hundred fifty-six million, two hundred twenty-two thousand, two hundred fifty-five".