1122112131 has 16 divisors (see below), whose sum is σ = 1742148864. Its totient is φ = 629108064.

The previous prime is 1122112099. The next prime is 1122112151. The reversal of 1122112131 is 1312112211.

It is not a de Polignac number, because 1122112131 - 2⁵ = 1122112099 is a prime.

It is a super-2 number, since 2×1122112131² = 2518271269074722322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122112131.

It is not an unprimeable number, because it can be changed into a prime (1122112151) 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 15 ways as a sum of consecutive naturals, for example, 502981 + ... + 505206.

It is an arithmetic number, because the mean of its divisors is an integer number (108884304).

Almost surely, 2^1122112131 is an apocalyptic number.

1122112131 is a deficient number, since it is larger than the sum of its proper divisors (620036733).

1122112131 is a wasteful number, since it uses less digits than its factorization.

1122112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008250.

The product of its digits is 24, while the sum is 15.

The square root of 1122112131 is about 33497.9421905287. The cubic root of 1122112131 is about 1039.1512216119.

Adding to 1122112131 its reverse (1312112211), we get a palindrome (2434224342).

The spelling of 1122112131 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, one hundred thirty-one".