1151222255 has 16 divisors (see below), whose sum is σ = 1493482080. Its totient is φ = 848921472.

The previous prime is 1151222147. The next prime is 1151222263. The reversal of 1151222255 is 5522221511.

It is a happy number.

1151222255 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1151222255 - 2⁸ = 1151221999 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, 160244 + ... + 167273.

It is an arithmetic number, because the mean of its divisors is an integer number (93342630).

Almost surely, 2^1151222255 is an apocalyptic number.

1151222255 is a deficient number, since it is larger than the sum of its proper divisors (342259825).

1151222255 is a wasteful number, since it uses less digits than its factorization.

1151222255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327578.

The product of its digits is 2000, while the sum is 26.

The square root of 1151222255 is about 33929.6662966201. Note that the first 3 decimals coincide. The cubic root of 1151222255 is about 1048.0605938660.

Adding to 1151222255 its reverse (5522221511), we get a palindrome (6673443766).

The spelling of 1151222255 in words is "one billion, one hundred fifty-one million, two hundred twenty-two thousand, two hundred fifty-five".