12051722851 has 16 divisors (see below), whose sum is σ = 14012167680. Its totient is φ = 10151104320.

The previous prime is 12051722849. The next prime is 12051722861. The reversal of 12051722851 is 15822715021.

It is not a de Polignac number, because 12051722851 - 2¹ = 12051722849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12051722861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1771266 + ... + 1778056.

It is an arithmetic number, because the mean of its divisors is an integer number (875760480).

Almost surely, 2^12051722851 is an apocalyptic number.

12051722851 is a deficient number, since it is larger than the sum of its proper divisors (1960444829).

12051722851 is an equidigital number, since it uses as much as digits as its factorization.

12051722851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11154.

The product of its (nonzero) digits is 11200, while the sum is 34.

The spelling of 12051722851 in words is "twelve billion, fifty-one million, seven hundred twenty-two thousand, eight hundred fifty-one".