2221215323 has 2 divisors, whose sum is σ = 2221215324. Its totient is φ = 2221215322.

The previous prime is 2221215263. The next prime is 2221215341. The reversal of 2221215323 is 3235121222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221215323 - 2¹² = 2221211227 is a prime.

It is a super-2 number, since 2×2221215323² = 9867595022259988658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221215383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110607661 + 1110607662.

It is an arithmetic number, because the mean of its divisors is an integer number (1110607662).

Almost surely, 2^2221215323 is an apocalyptic number.

2221215323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221215323 is an equidigital number, since it uses as much as digits as its factorization.

2221215323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 2221215323 is about 47129.7710900446. The cubic root of 2221215323 is about 1304.7587567549.

Adding to 2221215323 its reverse (3235121222), we get a palindrome (5456336545).

The spelling of 2221215323 in words is "two billion, two hundred twenty-one million, two hundred fifteen thousand, three hundred twenty-three".