220233331 has 6 divisors (see below), whose sum is σ = 227567796. Its totient is φ = 213128100.

The previous prime is 220233329. The next prime is 220233347. The reversal of 220233331 is 133332022.

It is a happy number.

It is not a de Polignac number, because 220233331 - 2¹ = 220233329 is a prime.

It is a super-2 number, since 2×220233331² = 97005440166711122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220233299 and 220233308.

It is not an unprimeable number, because it can be changed into a prime (220233311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113625 + ... + 115546.

It is an arithmetic number, because the mean of its divisors is an integer number (37927966).

Almost surely, 2^220233331 is an apocalyptic number.

220233331 is a deficient number, since it is larger than the sum of its proper divisors (7334465).

220233331 is an equidigital number, since it uses as much as digits as its factorization.

220233331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229233 (or 229202 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 220233331 is about 14840.2604761507. The cubic root of 220233331 is about 603.8944187408.

Adding to 220233331 its reverse (133332022), we get a palindrome (353565353).

The spelling of 220233331 in words is "two hundred twenty million, two hundred thirty-three thousand, three hundred thirty-one".