11220031232 has 36 divisors (see below), whose sum is σ = 22435749336. Its totient is φ = 5600117760.

The previous prime is 11220031201. The next prime is 11220031253. The reversal of 11220031232 is 23213002211.

It is a self number, because there is not a number n which added to its sum of digits gives 11220031232.

It is a congruent number.

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, 107798 + ... + 184554.

Almost surely, 2^11220031232 is an apocalyptic number.

It is an amenable number.

11220031232 is a deficient number, since it is larger than the sum of its proper divisors (11215718104).

11220031232 is an frugal number, since it uses more digits than its factorization.

11220031232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77344 (or 77330 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11220031232 its reverse (23213002211), we get a palindrome (34433033443).

The spelling of 11220031232 in words is "eleven billion, two hundred twenty million, thirty-one thousand, two hundred thirty-two".