2255221131 has 32 divisors (see below), whose sum is σ = 3212732160. Its totient is φ = 1403127936.

The previous prime is 2255221109. The next prime is 2255221159. The reversal of 2255221131 is 1311225522.

It is not a de Polignac number, because 2255221131 - 2⁵ = 2255221099 is a prime.

It is a super-2 number, since 2×2255221131² = 10172044699417838322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2255221181) 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 31 ways as a sum of consecutive naturals, for example, 1200565 + ... + 1202441.

It is an arithmetic number, because the mean of its divisors is an integer number (100397880).

Almost surely, 2^2255221131 is an apocalyptic number.

2255221131 is a deficient number, since it is larger than the sum of its proper divisors (957511029).

2255221131 is a wasteful number, since it uses less digits than its factorization.

2255221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its digits is 1200, while the sum is 24.

The square root of 2255221131 is about 47489.1685650528. The cubic root of 2255221131 is about 1311.3834870130.

Adding to 2255221131 its reverse (1311225522), we get a palindrome (3566446653).

The spelling of 2255221131 in words is "two billion, two hundred fifty-five million, two hundred twenty-one thousand, one hundred thirty-one".