2223221331 has 32 divisors (see below), whose sum is σ = 3344048640. Its totient is φ = 1306761984.

The previous prime is 2223221323. The next prime is 2223221333. The reversal of 2223221331 is 1331223222.

It is a happy number.

It is not a de Polignac number, because 2223221331 - 2³ = 2223221323 is a prime.

It is a super-2 number, since 2×2223221331² = 9885426173226823122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2223221298 and 2223221307.

It is not an unprimeable number, because it can be changed into a prime (2223221333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25591 + ... + 71423.

It is an arithmetic number, because the mean of its divisors is an integer number (104501520).

Almost surely, 2^2223221331 is an apocalyptic number.

2223221331 is a deficient number, since it is larger than the sum of its proper divisors (1120827309).

2223221331 is a wasteful number, since it uses less digits than its factorization.

2223221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45915.

The product of its digits is 864, while the sum is 21.

The square root of 2223221331 is about 47151.0480371327. The cubic root of 2223221331 is about 1305.1514200190.

Adding to 2223221331 its reverse (1331223222), we get a palindrome (3554444553).

The spelling of 2223221331 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-one".