220221021111200 has 72 divisors (see below), whose sum is σ = 537623340403968. Its totient is φ = 88086971047680.

The previous prime is 220221021111199. The next prime is 220221021111263. The reversal of 220221021111200 is 2111120122022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47499539 + ... + 51929261.

It is an arithmetic number, because the mean of its divisors is an integer number (7466990838944).

Almost surely, 2^{220221021111200} is an apocalyptic number.

220221021111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221021111200 is an abundant number, since it is smaller than the sum of its proper divisors (317402319292768).

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

220221021111200 is a wasteful number, since it uses less digits than its factorization.

220221021111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491886 (or 4491873 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220221021111200 its reverse (2111120122022), we get a palindrome (222332141233222).

The spelling of 220221021111200 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-one million, one hundred eleven thousand, two hundred".