2220331 has 2 divisors, whose sum is σ = 2220332. Its totient is φ = 2220330.

The previous prime is 2220311. The next prime is 2220349. The reversal of 2220331 is 1330222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2220331 - 2⁷ = 2220203 is a prime.

It is a super-2 number, since 2×2220331² = 9859739499122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2220301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110165 + 1110166.

It is an arithmetic number, because the mean of its divisors is an integer number (1110166).

2^2220331 is an apocalyptic number.

2220331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220331 is an equidigital number, since it uses as much as digits as its factorization.

2220331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2220331 is about 1490.0775147622. The cubic root of 2220331 is about 130.4585581088.

Adding to 2220331 its reverse (1330222), we get a palindrome (3550553).

The spelling of 2220331 in words is "two million, two hundred twenty thousand, three hundred thirty-one".