220022320 has 80 divisors (see below), whose sum is σ = 586891008. Its totient is φ = 75144960.

The previous prime is 220022311. The next prime is 220022321. The reversal of 220022320 is 23220022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 220022320.

It is not an unprimeable number, because it can be changed into a prime (220022321) 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, 184767 + ... + 185953.

Almost surely, 2^220022320 is an apocalyptic number.

220022320 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 220022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293445504).

220022320 is an abundant number, since it is smaller than the sum of its proper divisors (366868688).

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

220022320 is a wasteful number, since it uses less digits than its factorization.

220022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 220022320 is about 14833.1493621550. The cubic root of 220022320 is about 603.7014883857.

Adding to 220022320 its reverse (23220022), we get a palindrome (243242342).

The spelling of 220022320 in words is "two hundred twenty million, twenty-two thousand, three hundred twenty".