2221331233 has 4 divisors (see below), whose sum is σ = 2423270448. Its totient is φ = 2019392020.

The previous prime is 2221331213. The next prime is 2221331239. The reversal of 2221331233 is 3321331222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2221331233 - 2²¹ = 2219234081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221331239) 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 3 ways as a sum of consecutive naturals, for example, 100969591 + ... + 100969612.

It is an arithmetic number, because the mean of its divisors is an integer number (605817612).

Almost surely, 2^2221331233 is an apocalyptic number.

It is an amenable number.

2221331233 is a deficient number, since it is larger than the sum of its proper divisors (201939215).

2221331233 is a wasteful number, since it uses less digits than its factorization.

2221331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201939214.

The product of its digits is 1296, while the sum is 22.

The square root of 2221331233 is about 47131.0007638285. Note that the first 3 decimals coincide. The cubic root of 2221331233 is about 1304.7814518317.

Adding to 2221331233 its reverse (3321331222), we get a palindrome (5542662455).

The spelling of 2221331233 in words is "two billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-three".