12213001 has 2 divisors, whose sum is σ = 12213002. Its totient is φ = 12213000.

The previous prime is 12212983. The next prime is 12213007. The reversal of 12213001 is 10031221.

12213001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7284601 + 4928400 = 2699^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213001 - 2¹⁹ = 11688713 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106500 + 6106501.

It is an arithmetic number, because the mean of its divisors is an integer number (6106501).

Almost surely, 2^12213001 is an apocalyptic number.

It is an amenable number.

12213001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213001 is an equidigital number, since it uses as much as digits as its factorization.

12213001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 12213001 is about 3494.7104314950. The cubic root of 12213001 is about 230.2894968364.

Adding to 12213001 its reverse (10031221), we get a palindrome (22244222).

The spelling of 12213001 in words is "twelve million, two hundred thirteen thousand, one".