12044271881 has 2 divisors, whose sum is σ = 12044271882. Its totient is φ = 12044271880.

The previous prime is 12044271803. The next prime is 12044271887. The reversal of 12044271881 is 18817244021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7420271881 + 4624000000 = 86141^2 + 68000^2 .

It is a cyclic number.

It is not a de Polignac number, because 12044271881 - 2¹⁴ = 12044255497 is a prime.

It is a super-2 number, since 2×12044271881² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12044271887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022135940 + 6022135941.

It is an arithmetic number, because the mean of its divisors is an integer number (6022135941).

Almost surely, 2^12044271881 is an apocalyptic number.

It is an amenable number.

12044271881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12044271881 is an equidigital number, since it uses as much as digits as its factorization.

12044271881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 38.

The spelling of 12044271881 in words is "twelve billion, forty-four million, two hundred seventy-one thousand, eight hundred eighty-one".