11312122200 has 96 divisors (see below), whose sum is σ = 36592300800. Its totient is φ = 2885407360.

The previous prime is 11312122193. The next prime is 11312122271. The reversal of 11312122200 is 222121311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11312122200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396060 + ... + 423659.

It is an arithmetic number, because the mean of its divisors is an integer number (381169800).

Almost surely, 2^11312122200 is an apocalyptic number.

11312122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312122200 is an abundant number, since it is smaller than the sum of its proper divisors (25280178600).

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

11312122200 is a wasteful number, since it uses less digits than its factorization.

11312122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819761 (or 819752 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11312122200 its reverse (222121311), we get a palindrome (11534243511).

The spelling of 11312122200 in words is "eleven billion, three hundred twelve million, one hundred twenty-two thousand, two hundred".