222220310220 has 240 divisors, whose sum is σ = 709092191808. Its totient is φ = 58249082880.

The previous prime is 222220310209. The next prime is 222220310243. The reversal of 222220310220 is 22013022222.

222220310220 is a `hidden beast` number, since 222 + 220 + 3 + 1 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222220310193 and 222220310202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 22854960 + ... + 22864680.

Almost surely, 2^222220310220 is an apocalyptic number.

222220310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222220310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354546095904).

222220310220 is an abundant number, since it is smaller than the sum of its proper divisors (486871881588).

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

222220310220 is a wasteful number, since it uses less digits than its factorization.

222220310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982 (or 9971 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222220310220 its reverse (22013022222), we get a palindrome (244233332442).

The spelling of 222220310220 in words is "two hundred twenty-two billion, two hundred twenty million, three hundred ten thousand, two hundred twenty".