12122051449 has 4 divisors (see below), whose sum is σ = 12292784640. Its totient is φ = 11951318260.

The previous prime is 12122051387. The next prime is 12122051453. The reversal of 12122051449 is 94415022121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12122051449 - 2⁹ = 12122050937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122051449.

It is not an unprimeable number, because it can be changed into a prime (12122051749) 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, 85366489 + ... + 85366630.

It is an arithmetic number, because the mean of its divisors is an integer number (3073196160).

Almost surely, 2^12122051449 is an apocalyptic number.

It is an amenable number.

12122051449 is a deficient number, since it is larger than the sum of its proper divisors (170733191).

12122051449 is an equidigital number, since it uses as much as digits as its factorization.

12122051449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170733190.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 12122051449 in words is "twelve billion, one hundred twenty-two million, fifty-one thousand, four hundred forty-nine".