222202122220 has 96 divisors (see below), whose sum is σ = 507844592640. Its totient is φ = 81176463360.

The previous prime is 222202122209. The next prime is 222202122277. The reversal of 222202122220 is 22221202222.

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 31 ways as a sum of consecutive naturals, for example, 21561589 + ... + 21571891.

It is an arithmetic number, because the mean of its divisors is an integer number (5290047840).

Almost surely, 2^222202122220 is an apocalyptic number.

222202122220 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 222202122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253922296320).

222202122220 is an abundant number, since it is smaller than the sum of its proper divisors (285642470420).

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

222202122220 is a wasteful number, since it uses less digits than its factorization.

222202122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11195 (or 11193 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 222202122220 its reverse (22221202222), we get a palindrome (244423324442).

The spelling of 222202122220 in words is "two hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty".