11312220112 has 10 divisors (see below), whose sum is σ = 21917426498. Its totient is φ = 5656110048.

The previous prime is 11312220107. The next prime is 11312220113. The reversal of 11312220112 is 21102221311.

It can be written as a sum of positive squares in only one way, i.e., 10105074576 + 1207145536 = 100524^2 + 34744^2 .

It is a super-3 number, since 3×11312220112³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 707013757 = 11312220112 / (1 + 1 + 3 + 1 + 2 + 2 + 2 + 0 + 1 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312220113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353506863 + ... + 353506894.

Almost surely, 2^11312220112 is an apocalyptic number.

It is an amenable number.

11312220112 is a deficient number, since it is larger than the sum of its proper divisors (10605206386).

11312220112 is an equidigital number, since it uses as much as digits as its factorization.

11312220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707013765 (or 707013759 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11312220112 its reverse (21102221311), we get a palindrome (32414441423).

The spelling of 11312220112 in words is "eleven billion, three hundred twelve million, two hundred twenty thousand, one hundred twelve".