2212221233 has 4 divisors (see below), whose sum is σ = 2212558068. Its totient is φ = 2211884400.

The previous prime is 2212221173. The next prime is 2212221241. The reversal of 2212221233 is 3321222122.

It is a happy number.

2212221233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1332031009 + 880190224 = 36497^2 + 29668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212221233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212221533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158366 + ... + 171767.

It is an arithmetic number, because the mean of its divisors is an integer number (553139517).

Almost surely, 2^2212221233 is an apocalyptic number.

It is an amenable number.

2212221233 is a deficient number, since it is larger than the sum of its proper divisors (336835).

2212221233 is an equidigital number, since it uses as much as digits as its factorization.

2212221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336834.

The product of its digits is 576, while the sum is 20.

The square root of 2212221233 is about 47034.2559524439. The cubic root of 2212221233 is about 1302.9953088390.

Adding to 2212221233 its reverse (3321222122), we get a palindrome (5533443355).

The spelling of 2212221233 in words is "two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred thirty-three".