12722233 has 2 divisors, whose sum is σ = 12722234. Its totient is φ = 12722232.

The previous prime is 12722219. The next prime is 12722249. The reversal of 12722233 is 33222721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9909904 + 2812329 = 3148^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 12722233 - 2⁹ = 12721721 is a prime.

It is not a weakly prime, because it can be changed into another prime (12722293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361116 + 6361117.

It is an arithmetic number, because the mean of its divisors is an integer number (6361117).

Almost surely, 2^12722233 is an apocalyptic number.

It is an amenable number.

12722233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722233 is an equidigital number, since it uses as much as digits as its factorization.

12722233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 12722233 is about 3566.8239373426. The cubic root of 12722233 is about 233.4467228934.

Adding to 12722233 its reverse (33222721), we get a palindrome (45944954).

The spelling of 12722233 in words is "twelve million, seven hundred twenty-two thousand, two hundred thirty-three".