1226911255 has 4 divisors (see below), whose sum is σ = 1472293512. Its totient is φ = 981529000.

The previous prime is 1226911253. The next prime is 1226911271. The reversal of 1226911255 is 5521196221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5521196221 = 769 ⋅7179709.

It is not a de Polignac number, because 1226911255 - 2¹ = 1226911253 is a prime.

It is a super-2 number, since 2×1226911255² = 3010622455291350050, which contains 22 as substring.

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 1226911255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226911253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122691121 + ... + 122691130.

It is an arithmetic number, because the mean of its divisors is an integer number (368073378).

Almost surely, 2^1226911255 is an apocalyptic number.

1226911255 is a deficient number, since it is larger than the sum of its proper divisors (245382257).

1226911255 is an equidigital number, since it uses as much as digits as its factorization.

1226911255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245382256.

The product of its digits is 10800, while the sum is 34.

The square root of 1226911255 is about 35027.2930013154. The cubic root of 1226911255 is about 1070.5436591478.

The spelling of 1226911255 in words is "one billion, two hundred twenty-six million, nine hundred eleven thousand, two hundred fifty-five".