220321233 has 24 divisors (see below), whose sum is σ = 347742720. Its totient is φ = 133308960.

The previous prime is 220321229. The next prime is 220321237. The reversal of 220321233 is 332123022.

It is a happy number.

220321233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220321229) and next prime (220321237).

It is not a de Polignac number, because 220321233 - 2² = 220321229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220321237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75088 + ... + 77966.

It is an arithmetic number, because the mean of its divisors is an integer number (14489280).

Almost surely, 2^220321233 is an apocalyptic number.

It is an amenable number.

220321233 is a deficient number, since it is larger than the sum of its proper divisors (127421487).

220321233 is a wasteful number, since it uses less digits than its factorization.

220321233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 220321233 is about 14843.2217863913. The cubic root of 220321233 is about 603.9747524277.

Adding to 220321233 its reverse (332123022), we get a palindrome (552444255).

It can be divided in two parts, 2203 and 21233, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 220321233 in words is "two hundred twenty million, three hundred twenty-one thousand, two hundred thirty-three".