220722250 has 32 divisors (see below), whose sum is σ = 472223232. Its totient is φ = 75675600.

The previous prime is 220722211. The next prime is 220722253. The reversal of 220722250 is 52227022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220722253) 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, 61314 + ... + 64813.

It is an arithmetic number, because the mean of its divisors is an integer number (14756976).

Almost surely, 2^220722250 is an apocalyptic number.

220722250 is an abundant number, since it is smaller than the sum of its proper divisors (251500982).

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

220722250 is a wasteful number, since it uses less digits than its factorization.

220722250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126151 (or 126141 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 220722250 is about 14856.7240668998. The cubic root of 220722250 is about 604.3409712428.

Adding to 220722250 its reverse (52227022), we get a palindrome (272949272).

The spelling of 220722250 in words is "two hundred twenty million, seven hundred twenty-two thousand, two hundred fifty".