12223445567881 has 2 divisors, whose sum is σ = 12223445567882. Its totient is φ = 12223445567880.

The previous prime is 12223445567867. The next prime is 12223445567891. The reversal of 12223445567881 is 18876554432221.

12223445567881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12129895840000 + 93549727881 = 3482800^2 + 305859^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223445567881 - 2⁵ = 12223445567849 is a prime.

It is a super-2 number, since 2×12223445567881² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12223445567891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111722783940 + 6111722783941.

It is an arithmetic number, because the mean of its divisors is an integer number (6111722783941).

Almost surely, 2^{12223445567881} is an apocalyptic number.

It is an amenable number.

12223445567881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223445567881 is an equidigital number, since it uses as much as digits as its factorization.

12223445567881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25804800, while the sum is 58.

The spelling of 12223445567881 in words is "twelve trillion, two hundred twenty-three billion, four hundred forty-five million, five hundred sixty-seven thousand, eight hundred eighty-one".