12224577881 has 2 divisors, whose sum is σ = 12224577882. Its totient is φ = 12224577880.

The previous prime is 12224577853. The next prime is 12224577899. The reversal of 12224577881 is 18877542221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8405955856 + 3818622025 = 91684^2 + 61795^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224577881 - 2¹⁴ = 12224561497 is a prime.

It is a super-2 number, since 2×12224577881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12224507881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112288940 + 6112288941.

It is an arithmetic number, because the mean of its divisors is an integer number (6112288941).

Almost surely, 2^12224577881 is an apocalyptic number.

It is an amenable number.

12224577881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224577881 is an equidigital number, since it uses as much as digits as its factorization.

12224577881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 501760, while the sum is 47.

The spelling of 12224577881 in words is "twelve billion, two hundred twenty-four million, five hundred seventy-seven thousand, eight hundred eighty-one".