222322620 has 96 divisors (see below), whose sum is σ = 681891840. Its totient is φ = 53786880.

The previous prime is 222322619. The next prime is 222322627. The reversal of 222322620 is 26223222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222322627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43605 + ... + 48435.

It is an arithmetic number, because the mean of its divisors is an integer number (7103040).

Almost surely, 2^222322620 is an apocalyptic number.

222322620 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 222322620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340945920).

222322620 is an abundant number, since it is smaller than the sum of its proper divisors (459569220).

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

222322620 is a wasteful number, since it uses less digits than its factorization.

222322620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915 (or 4913 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 222322620 is about 14910.4869135786. The cubic root of 222322620 is about 605.7980679785.

Adding to 222322620 its reverse (26223222), we get a palindrome (248545842).

The spelling of 222322620 in words is "two hundred twenty-two million, three hundred twenty-two thousand, six hundred twenty".