12232621 has 2 divisors, whose sum is σ = 12232622. Its totient is φ = 12232620.

The previous prime is 12232613. The next prime is 12232663. The reversal of 12232621 is 12623221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7344100 + 4888521 = 2710^2 + 2211^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232621 - 2³ = 12232613 is a prime.

It is a super-3 number, since 3×12232621³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116310 + 6116311.

It is an arithmetic number, because the mean of its divisors is an integer number (6116311).

Almost surely, 2^12232621 is an apocalyptic number.

It is an amenable number.

12232621 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232621 is an equidigital number, since it uses as much as digits as its factorization.

12232621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 12232621 is about 3497.5164045362. The cubic root of 12232621 is about 230.4127497144.

Adding to 12232621 its reverse (12623221), we get a palindrome (24855842).

It can be divided in two parts, 1223 and 2621, that added together give a square (3844 = 62²).

The spelling of 12232621 in words is "twelve million, two hundred thirty-two thousand, six hundred twenty-one".