1122256131 has 4 divisors (see below), whose sum is σ = 1496341512. Its totient is φ = 748170752.

The previous prime is 1122256117. The next prime is 1122256133. The reversal of 1122256131 is 1316522211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1122256131 - 2¹¹ = 1122254083 is a prime.

It is a super-2 number, since 2×1122256131² = 2518917647134178322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122256133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187042686 + ... + 187042691.

It is an arithmetic number, because the mean of its divisors is an integer number (374085378).

Almost surely, 2^1122256131 is an apocalyptic number.

1122256131 is a deficient number, since it is larger than the sum of its proper divisors (374085381).

1122256131 is an equidigital number, since it uses as much as digits as its factorization.

1122256131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374085380.

The product of its digits is 720, while the sum is 24.

The square root of 1122256131 is about 33500.0915073377. The cubic root of 1122256131 is about 1039.1956709354.

Adding to 1122256131 its reverse (1316522211), we get a palindrome (2438778342).

The spelling of 1122256131 in words is "one billion, one hundred twenty-two million, two hundred fifty-six thousand, one hundred thirty-one".