12404222001 has 6 divisors (see below), whose sum is σ = 17917209570. Its totient is φ = 8269481328.

The previous prime is 12404221993. The next prime is 12404222003. The reversal of 12404222001 is 10022240421.

12404222001 is a `hidden beast` number, since 1 + 2 + 40 + 422 + 200 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12393032976 + 11189025 = 111324^2 + 3345^2 .

It is not a de Polignac number, because 12404222001 - 2³ = 12404221993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12404222003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689123436 + ... + 689123453.

It is an arithmetic number, because the mean of its divisors is an integer number (2986201595).

Almost surely, 2^12404222001 is an apocalyptic number.

It is an amenable number.

12404222001 is a deficient number, since it is larger than the sum of its proper divisors (5512987569).

12404222001 is a wasteful number, since it uses less digits than its factorization.

12404222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378246895 (or 1378246892 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12404222001 its reverse (10022240421), we get a palindrome (22426462422).

The spelling of 12404222001 in words is "twelve billion, four hundred four million, two hundred twenty-two thousand, one".