220402233 has 12 divisors (see below), whose sum is σ = 329337060. Its totient is φ = 141867936.

The previous prime is 220402213. The next prime is 220402253. The reversal of 220402233 is 332204022.

It is an interprime number because it is at equal distance from previous prime (220402213) and next prime (220402253).

It can be written as a sum of positive squares in 2 ways, for example, as 48608784 + 171793449 = 6972^2 + 13107^2 .

It is not a de Polignac number, because 220402233 - 2⁵ = 220402201 is a prime.

It is a super-2 number, since 2×220402233² = 97154288622772578, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220402213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421966 + ... + 422487.

It is an arithmetic number, because the mean of its divisors is an integer number (27444755).

Almost surely, 2^220402233 is an apocalyptic number.

It is an amenable number.

220402233 is a deficient number, since it is larger than the sum of its proper divisors (108934827).

220402233 is a wasteful number, since it uses less digits than its factorization.

220402233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844488 (or 844485 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 220402233 is about 14845.9500538026. The cubic root of 220402233 is about 604.0487594585.

Adding to 220402233 its reverse (332204022), we get a palindrome (552606255).

The spelling of 220402233 in words is "two hundred twenty million, four hundred two thousand, two hundred thirty-three".