12021112222200 has 192 divisors, whose sum is σ = 41808055660800. Its totient is φ = 3174507158400.

The previous prime is 12021112222181. The next prime is 12021112222363. The reversal of 12021112222200 is 222221112021.

It is a happy number.

12021112222200 is a `hidden beast` number, since 1 + 20 + 211 + 12 + 222 + 200 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10250266 + ... + 11362665.

It is an arithmetic number, because the mean of its divisors is an integer number (217750289900).

Almost surely, 2^{12021112222200} is an apocalyptic number.

12021112222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021112222200 is an abundant number, since it is smaller than the sum of its proper divisors (29786943438600).

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

12021112222200 is a wasteful number, since it uses less digits than its factorization.

12021112222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21613059 (or 21613044 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12021112222200 its reverse (222221112021), we get a palindrome (12243333334221).

The spelling of 12021112222200 in words is "twelve trillion, twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, two hundred".