11112212211200 has 120 divisors (see below), whose sum is σ = 27942292079592. Its totient is φ = 4378542981120.

The previous prime is 11112212211053. The next prime is 11112212211227. The reversal of 11112212211200 is 211221221111.

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 11 ways as a sum of consecutive naturals, for example, 5621069 + ... + 7336268.

Almost surely, 2^{11112212211200} is an apocalyptic number.

11112212211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112212211200 is an abundant number, since it is smaller than the sum of its proper divisors (16830079868392).

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

11112212211200 is an equidigital number, since it uses as much as digits as its factorization.

11112212211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12957432 (or 12957411 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11112212211200 its reverse (211221221111), we get a palindrome (11323433432311).

The spelling of 11112212211200 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred".