11222113312 has 48 divisors (see below), whose sum is σ = 22328875800. Its totient is φ = 5551441920.

The previous prime is 11222113307. The next prime is 11222113313. The reversal of 11222113312 is 21331122211.

It can be written as a sum of positive squares in 4 ways, for example, as 10831813776 + 390299536 = 104076^2 + 19756^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11222113312.

It is not an unprimeable number, because it can be changed into a prime (11222113313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2889612 + ... + 2893492.

Almost surely, 2^11222113312 is an apocalyptic number.

It is an amenable number.

11222113312 is a deficient number, since it is larger than the sum of its proper divisors (11106762488).

11222113312 is a wasteful number, since it uses less digits than its factorization.

11222113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829 (or 4821 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 11222113312 its reverse (21331122211), we get a palindrome (32553235523).

The spelling of 11222113312 in words is "eleven billion, two hundred twenty-two million, one hundred thirteen thousand, three hundred twelve".