1011224255 has 4 divisors (see below), whose sum is σ = 1213469112. Its totient is φ = 808979400.

The previous prime is 1011224219. The next prime is 1011224257. The reversal of 1011224255 is 5524221101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1011224255 - 2²² = 1007029951 is a prime.

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 1011224255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011224257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101122421 + ... + 101122430.

It is an arithmetic number, because the mean of its divisors is an integer number (303367278).

Almost surely, 2^1011224255 is an apocalyptic number.

1011224255 is a deficient number, since it is larger than the sum of its proper divisors (202244857).

1011224255 is an equidigital number, since it uses as much as digits as its factorization.

1011224255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202244856.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1011224255 is about 31799.7524361433. The cubic root of 1011224255 is about 1003.7275067630.

Adding to 1011224255 its reverse (5524221101), we get a palindrome (6535445356).

The spelling of 1011224255 in words is "one billion, eleven million, two hundred twenty-four thousand, two hundred fifty-five".