12422001 has 16 divisors (see below), whose sum is σ = 17547264. Its totient is φ = 7800144.

The previous prime is 12421987. The next prime is 12422009. The reversal of 12422001 is 10022421.

It is not a de Polignac number, because 12422001 - 2⁷ = 12421873 is a prime.

It is a super-2 number, since 2×12422001² = 308612217688002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12422009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3280 + ... + 5966.

It is an arithmetic number, because the mean of its divisors is an integer number (1096704).

Almost surely, 2^12422001 is an apocalyptic number.

It is an amenable number.

12422001 is a deficient number, since it is larger than the sum of its proper divisors (5125263).

12422001 is a wasteful number, since it uses less digits than its factorization.

12422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12422001 is about 3524.4859199605. The cubic root of 12422001 is about 231.5957150928.

Adding to 12422001 its reverse (10022421), we get a palindrome (22444422).

The spelling of 12422001 in words is "twelve million, four hundred twenty-two thousand, one".