12213020117 has 2 divisors, whose sum is σ = 12213020118. Its totient is φ = 12213020116.

The previous prime is 12213020107. The next prime is 12213020137. The reversal of 12213020117 is 71102031221.

It is an a-pointer prime, because the next prime (12213020137) can be obtained adding 12213020117 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10521425476 + 1691594641 = 102574^2 + 41129^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213020117 - 2¹² = 12213016021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213020107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106510058 + 6106510059.

It is an arithmetic number, because the mean of its divisors is an integer number (6106510059).

Almost surely, 2^12213020117 is an apocalyptic number.

It is an amenable number.

12213020117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213020117 is an equidigital number, since it uses as much as digits as its factorization.

12213020117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 12213020117 its reverse (71102031221), we get a palindrome (83315051338).

The spelling of 12213020117 in words is "twelve billion, two hundred thirteen million, twenty thousand, one hundred seventeen".