12221032147 has 2 divisors, whose sum is σ = 12221032148. Its totient is φ = 12221032146.

The previous prime is 12221032099. The next prime is 12221032169. The reversal of 12221032147 is 74123012221.

It is a strong prime.

It is an emirp because it is prime and its reverse (74123012221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221032147 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221002147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110516073 + 6110516074.

It is an arithmetic number, because the mean of its divisors is an integer number (6110516074).

Almost surely, 2^12221032147 is an apocalyptic number.

12221032147 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221032147 is an equidigital number, since it uses as much as digits as its factorization.

12221032147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 12221032147 its reverse (74123012221), we get a palindrome (86344044368).

The spelling of 12221032147 in words is "twelve billion, two hundred twenty-one million, thirty-two thousand, one hundred forty-seven".