12290001 has 4 divisors (see below), whose sum is σ = 16386672. Its totient is φ = 8193332.

The previous prime is 12289999. The next prime is 12290009. The reversal of 12290001 is 10009221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12290001 - 2¹ = 12289999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12290009) 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, 2048331 + ... + 2048336.

It is an arithmetic number, because the mean of its divisors is an integer number (4096668).

Almost surely, 2^12290001 is an apocalyptic number.

It is an amenable number.

12290001 is a deficient number, since it is larger than the sum of its proper divisors (4096671).

12290001 is an equidigital number, since it uses as much as digits as its factorization.

12290001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096670.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12290001 is about 3505.7097712161. The cubic root of 12290001 is about 230.7724563566.

Adding to 12290001 its reverse (10009221), we get a palindrome (22299222).

The spelling of 12290001 in words is "twelve million, two hundred ninety thousand, one".