11222112312 has 24 divisors (see below), whose sum is σ = 30393221040. Its totient is φ = 3740704080.

The previous prime is 11222112299. The next prime is 11222112347. The reversal of 11222112312 is 21321122211.

11222112312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77931264 + ... + 77931407.

It is an arithmetic number, because the mean of its divisors is an integer number (1266384210).

Almost surely, 2^11222112312 is an apocalyptic number.

11222112312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11222112312 is an abundant number, since it is smaller than the sum of its proper divisors (19171108728).

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

11222112312 is a wasteful number, since it uses less digits than its factorization.

11222112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155862683 (or 155862676 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 11222112312 its reverse (21321122211), we get a palindrome (32543234523).

The spelling of 11222112312 in words is "eleven billion, two hundred twenty-two million, one hundred twelve thousand, three hundred twelve".