12204001 has 2 divisors, whose sum is σ = 12204002. Its totient is φ = 12204000.

The previous prime is 12203981. The next prime is 12204037. The reversal of 12204001 is 10040221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 2117025 = 3176^2 + 1455^2 .

It is an emirp because it is prime and its reverse (10040221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12204001 - 2⁹ = 12203489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12204601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6102000 + 6102001.

It is an arithmetic number, because the mean of its divisors is an integer number (6102001).

Almost surely, 2^12204001 is an apocalyptic number.

It is an amenable number.

12204001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12204001 is an equidigital number, since it uses as much as digits as its factorization.

12204001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12204001 is about 3493.4225338484. The cubic root of 12204001 is about 230.2329146528.

Adding to 12204001 its reverse (10040221), we get a palindrome (22244222).

The spelling of 12204001 in words is "twelve million, two hundred four thousand, one".