12224002081 has 2 divisors, whose sum is σ = 12224002082. Its totient is φ = 12224002080.

The previous prime is 12224002061. The next prime is 12224002121. The reversal of 12224002081 is 18020042221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11380622400 + 843379681 = 106680^2 + 29041^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224002081 - 2¹³ = 12223993889 is a prime.

It is a super-2 number, since 2×12224002081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12224002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112001040 + 6112001041.

It is an arithmetic number, because the mean of its divisors is an integer number (6112001041).

Almost surely, 2^12224002081 is an apocalyptic number.

It is an amenable number.

12224002081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224002081 is an equidigital number, since it uses as much as digits as its factorization.

12224002081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 12224002081 in words is "twelve billion, two hundred twenty-four million, two thousand, eighty-one".