220112001221200 has 120 divisors (see below), whose sum is σ = 576908867183616. Its totient is φ = 80038601856000.

The previous prime is 220112001221179. The next prime is 220112001221303. The reversal of 220112001221200 is 2122100211022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 23 ways as a sum of consecutive naturals, for example, 170000260 + ... + 171290140.

Almost surely, 2^{220112001221200} is an apocalyptic number.

220112001221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220112001221200 is an abundant number, since it is smaller than the sum of its proper divisors (356796865962416).

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

220112001221200 is a wasteful number, since it uses less digits than its factorization.

220112001221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328693 (or 1328682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220112001221200 its reverse (2122100211022), we get a palindrome (222234101432222).

It can be divided in two parts, 22011200 and 1221200, that added together give a square (23232400 = 4820²).

The spelling of 220112001221200 in words is "two hundred twenty trillion, one hundred twelve billion, one million, two hundred twenty-one thousand, two hundred".