12122643707 has 4 divisors (see below), whose sum is σ = 12123698496. Its totient is φ = 12121588920.

The previous prime is 12122643697. The next prime is 12122643719. The reversal of 12122643707 is 70734622121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70734622121 = 17909 ⋅3949669.

It is a cyclic number.

It is not a de Polignac number, because 12122643707 - 2⁴ = 12122643691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122643007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509963 + ... + 533204.

It is an arithmetic number, because the mean of its divisors is an integer number (3030924624).

Almost surely, 2^12122643707 is an apocalyptic number.

12122643707 is a deficient number, since it is larger than the sum of its proper divisors (1054789).

12122643707 is a wasteful number, since it uses less digits than its factorization.

12122643707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054788.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 12122643707 in words is "twelve billion, one hundred twenty-two million, six hundred forty-three thousand, seven hundred seven".