222021200220 has 48 divisors (see below), whose sum is σ = 621683112960. Its totient is φ = 59203391296.

The previous prime is 222021200179. The next prime is 222021200221. The reversal of 222021200220 is 22002120222.

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 222021200220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021200221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2027389 + ... + 2134091.

It is an arithmetic number, because the mean of its divisors is an integer number (12951731520).

Almost surely, 2^222021200220 is an apocalyptic number.

222021200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021200220 is an abundant number, since it is smaller than the sum of its proper divisors (399661912740).

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

222021200220 is a wasteful number, since it uses less digits than its factorization.

222021200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141394 (or 141392 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222021200220 its reverse (22002120222), we get a palindrome (244023320442).

The spelling of 222021200220 in words is "two hundred twenty-two billion, twenty-one million, two hundred thousand, two hundred twenty".