220222121200 has 30 divisors (see below), whose sum is σ = 529083647144. Its totient is φ = 88088848320.

The previous prime is 220222121143. The next prime is 220222121233. The reversal of 220222121200 is 2121222022.

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 5 ways as a sum of consecutive naturals, for example, 275277252 + ... + 275278051.

Almost surely, 2^220222121200 is an apocalyptic number.

220222121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220222121200 is an abundant number, since it is smaller than the sum of its proper divisors (308861525944).

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

220222121200 is a wasteful number, since it uses less digits than its factorization.

220222121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550555321 (or 550555310 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220222121200 its reverse (2121222022), we get a palindrome (222343343222).

The spelling of 220222121200 in words is "two hundred twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred".