12261001007 has 2 divisors, whose sum is σ = 12261001008. Its totient is φ = 12261001006.

The previous prime is 12261001003. The next prime is 12261001009. The reversal of 12261001007 is 70010016221.

12261001007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12261001007 - 2² = 12261001003 is a prime.

Together with 12261001009, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12261001007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12261001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6130500503 + 6130500504.

It is an arithmetic number, because the mean of its divisors is an integer number (6130500504).

Almost surely, 2^12261001007 is an apocalyptic number.

12261001007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12261001007 is an equidigital number, since it uses as much as digits as its factorization.

12261001007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 12261001007 its reverse (70010016221), we get a palindrome (82271017228).

The spelling of 12261001007 in words is "twelve billion, two hundred sixty-one million, one thousand, seven".