1131222404 has 24 divisors (see below), whose sum is σ = 2151854208. Its totient is φ = 517220640.

The previous prime is 1131222403. The next prime is 1131222413. The reversal of 1131222404 is 4042221311.

It is not an unprimeable number, because it can be changed into a prime (1131222403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96092 + ... + 107219.

It is an arithmetic number, because the mean of its divisors is an integer number (89660592).

Almost surely, 2^1131222404 is an apocalyptic number.

It is an amenable number.

1131222404 is a deficient number, since it is larger than the sum of its proper divisors (1020631804).

1131222404 is a wasteful number, since it uses less digits than its factorization.

1131222404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203435 (or 203433 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1131222404 is about 33633.6498762772. The cubic root of 1131222404 is about 1041.9558866435.

Adding to 1131222404 its reverse (4042221311), we get a palindrome (5173443715).

The spelling of 1131222404 in words is "one billion, one hundred thirty-one million, two hundred twenty-two thousand, four hundred four".