12221041013 has 2 divisors, whose sum is σ = 12221041014. Its totient is φ = 12221041012.

The previous prime is 12221041009. The next prime is 12221041043. The reversal of 12221041013 is 31014012221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9731230609 + 2489810404 = 98647^2 + 49898^2 .

It is an emirp because it is prime and its reverse (31014012221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221041013 - 2² = 12221041009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12221040982 and 12221041000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221041043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110520506 + 6110520507.

It is an arithmetic number, because the mean of its divisors is an integer number (6110520507).

Almost surely, 2^12221041013 is an apocalyptic number.

It is an amenable number.

12221041013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221041013 is an equidigital number, since it uses as much as digits as its factorization.

12221041013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12221041013 its reverse (31014012221), we get a palindrome (43235053234).

The spelling of 12221041013 in words is "twelve billion, two hundred twenty-one million, forty-one thousand, thirteen".