12112222212200 has 96 divisors (see below), whose sum is σ = 31025168860320. Its totient is φ = 4360836000000.

The previous prime is 12112222212193. The next prime is 12112222212221. The reversal of 12112222212200 is 221222221121.

It is a super-2 number, since 2×12112222212200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 23 ways as a sum of consecutive naturals, for example, 27033026 + ... + 27477425.

It is an arithmetic number, because the mean of its divisors is an integer number (323178842295).

Almost surely, 2^{12112222212200} is an apocalyptic number.

12112222212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112222212200 is an abundant number, since it is smaller than the sum of its proper divisors (18912946648120).

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

12112222212200 is a wasteful number, since it uses less digits than its factorization.

12112222212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54510579 (or 54510570 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12112222212200 its reverse (221222221121), we get a palindrome (12333444433321).

It can be divided in two parts, 121122 and 22212200, that added together give a palindrome (22333322).

The spelling of 12112222212200 in words is "twelve trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, two hundred".