220020021200 has 60 divisors (see below), whose sum is σ = 604112123040. Its totient is φ = 75435434880.

The previous prime is 220020021191. The next prime is 220020021239. The reversal of 220020021200 is 2120020022.

It is a congruent number.

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, 39286490 + ... + 39292089.

It is an arithmetic number, because the mean of its divisors is an integer number (10068535384).

Almost surely, 2^220020021200 is an apocalyptic number.

220020021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220020021200 is an abundant number, since it is smaller than the sum of its proper divisors (384092101840).

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

220020021200 is a wasteful number, since it uses less digits than its factorization.

220020021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78578604 (or 78578593 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220020021200 its reverse (2120020022), we get a palindrome (222140041222).

The spelling of 220020021200 in words is "two hundred twenty billion, twenty million, twenty-one thousand, two hundred".