12101022217 has 2 divisors, whose sum is σ = 12101022218. Its totient is φ = 12101022216.

The previous prime is 12101022209. The next prime is 12101022251. The reversal of 12101022217 is 71222010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9752747536 + 2348274681 = 98756^2 + 48459^2 .

It is an emirp because it is prime and its reverse (71222010121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12101022217 - 2³ = 12101022209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101022194 and 12101022203.

It is not a weakly prime, because it can be changed into another prime (12101022257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050511108 + 6050511109.

It is an arithmetic number, because the mean of its divisors is an integer number (6050511109).

Almost surely, 2^12101022217 is an apocalyptic number.

It is an amenable number.

12101022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101022217 is an equidigital number, since it uses as much as digits as its factorization.

12101022217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 12101022217 its reverse (71222010121), we get a palindrome (83323032338).

The spelling of 12101022217 in words is "twelve billion, one hundred one million, twenty-two thousand, two hundred seventeen".