12021200122200 has 192 divisors, whose sum is σ = 38310025337760. Its totient is φ = 3115988766720.

The previous prime is 12021200122181. The next prime is 12021200122213. The reversal of 12021200122200 is 222100212021.

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 12021200122200.

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, 22670502 + ... + 23194698.

Almost surely, 2^{12021200122200} is an apocalyptic number.

12021200122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021200122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19155012668880).

12021200122200 is an abundant number, since it is smaller than the sum of its proper divisors (26288825215560).

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

12021200122200 is a wasteful number, since it uses less digits than its factorization.

12021200122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525286 (or 525277 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12021200122200 its reverse (222100212021), we get a palindrome (12243300334221).

The spelling of 12021200122200 in words is "twelve trillion, twenty-one billion, two hundred million, one hundred twenty-two thousand, two hundred".