12010122545 has 4 divisors (see below), whose sum is σ = 14412147060. Its totient is φ = 9608098032.

The previous prime is 12010122529. The next prime is 12010122557. The reversal of 12010122545 is 54522101021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7138222144 + 4871900401 = 84488^2 + 69799^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010122545 - 2⁴ = 12010122529 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12010122545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201012250 + ... + 1201012259.

It is an arithmetic number, because the mean of its divisors is an integer number (3603036765).

Almost surely, 2^12010122545 is an apocalyptic number.

It is an amenable number.

12010122545 is a deficient number, since it is larger than the sum of its proper divisors (2402024515).

12010122545 is an equidigital number, since it uses as much as digits as its factorization.

12010122545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402024514.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 12010122545 its reverse (54522101021), we get a palindrome (66532223566).

The spelling of 12010122545 in words is "twelve billion, ten million, one hundred twenty-two thousand, five hundred forty-five".