220771233 has 12 divisors (see below), whose sum is σ = 319166848. Its totient is φ = 147053880.

The previous prime is 220771219. The next prime is 220771237. The reversal of 220771233 is 332177022.

It is a happy number.

It is not a de Polignac number, because 220771233 - 2⁴ = 220771217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220771197 and 220771206.

It is not an unprimeable number, because it can be changed into a prime (220771237) 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 11 ways as a sum of consecutive naturals, for example, 1116 + ... + 21042.

Almost surely, 2^220771233 is an apocalyptic number.

It is an amenable number.

220771233 is a deficient number, since it is larger than the sum of its proper divisors (98395615).

220771233 is a wasteful number, since it uses less digits than its factorization.

220771233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21164 (or 21161 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 220771233 is about 14858.3724882640. The cubic root of 220771233 is about 604.3856733428.

The spelling of 220771233 in words is "two hundred twenty million, seven hundred seventy-one thousand, two hundred thirty-three".