220122444 has 48 divisors (see below), whose sum is σ = 534352896. Its totient is φ = 70449600.

The previous prime is 220122439. The next prime is 220122517. The reversal of 220122444 is 444221022.

It is a self number, because there is not a number n which added to its sum of digits gives 220122444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46474 + ... + 50990.

It is an arithmetic number, because the mean of its divisors is an integer number (11132352).

Almost surely, 2^220122444 is an apocalyptic number.

It is an amenable number.

220122444 is an abundant number, since it is smaller than the sum of its proper divisors (314230452).

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

220122444 is a wasteful number, since it uses less digits than its factorization.

220122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 220122444 is about 14836.5239864329. The cubic root of 220122444 is about 603.7930485531.

Adding to 220122444 its reverse (444221022), we get a palindrome (664343466).

The spelling of 220122444 in words is "two hundred twenty million, one hundred twenty-two thousand, four hundred forty-four".