12402040201 has 2 divisors, whose sum is σ = 12402040202. Its totient is φ = 12402040200.

The previous prime is 12402040199. The next prime is 12402040213. The reversal of 12402040201 is 10204020421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12337655625 + 64384576 = 111075^2 + 8024^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402040201 - 2¹ = 12402040199 is a prime.

It is a super-2 number, since 2×12402040201² (a number of 21 digits) contains 22 as substring.

Together with 12402040199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12402040241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201020100 + 6201020101.

It is an arithmetic number, because the mean of its divisors is an integer number (6201020101).

Almost surely, 2^12402040201 is an apocalyptic number.

It is an amenable number.

12402040201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402040201 is an equidigital number, since it uses as much as digits as its factorization.

12402040201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12402040201 its reverse (10204020421), we get a palindrome (22606060622).

The spelling of 12402040201 in words is "twelve billion, four hundred two million, forty thousand, two hundred one".