1331122404 has 12 divisors (see below), whose sum is σ = 3105952304. Its totient is φ = 443707464.

The previous prime is 1331122399. The next prime is 1331122421. The reversal of 1331122404 is 4042211331.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55463422 + ... + 55463445.

Almost surely, 2^1331122404 is an apocalyptic number.

It is an amenable number.

1331122404 is an abundant number, since it is smaller than the sum of its proper divisors (1774829900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331122404 is a wasteful number, since it uses less digits than its factorization.

1331122404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110926874 (or 110926872 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1331122404 is about 36484.5502096435. The cubic root of 1331122404 is about 1100.0337190766.

Adding to 1331122404 its reverse (4042211331), we get a palindrome (5373333735).

The spelling of 1331122404 in words is "one billion, three hundred thirty-one million, one hundred twenty-two thousand, four hundred four".