220221283 has 4 divisors (see below), whose sum is σ = 220263840. Its totient is φ = 220178728.

The previous prime is 220221233. The next prime is 220221341. The reversal of 220221283 is 382122022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220221283 - 2²¹ = 218124131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12235 + ... + 24292.

It is an arithmetic number, because the mean of its divisors is an integer number (55065960).

Almost surely, 2^220221283 is an apocalyptic number.

220221283 is a deficient number, since it is larger than the sum of its proper divisors (42557).

220221283 is an equidigital number, since it uses as much as digits as its factorization.

220221283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42556.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 220221283 is about 14839.8545478047. The cubic root of 220221283 is about 603.8834064013.

The spelling of 220221283 in words is "two hundred twenty million, two hundred twenty-one thousand, two hundred eighty-three".