212333120117 has 2 divisors, whose sum is σ = 212333120118. Its totient is φ = 212333120116.

The previous prime is 212333120113. The next prime is 212333120143. The reversal of 212333120117 is 711021333212.

It is an a-pointer prime, because the next prime (212333120143) can be obtained adding 212333120117 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146555746276 + 65777373841 = 382826^2 + 256471^2 .

It is a cyclic number.

It is not a de Polignac number, because 212333120117 - 2² = 212333120113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212333120113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106166560058 + 106166560059.

It is an arithmetic number, because the mean of its divisors is an integer number (106166560059).

Almost surely, 2^212333120117 is an apocalyptic number.

It is an amenable number.

212333120117 is a deficient number, since it is larger than the sum of its proper divisors (1).

212333120117 is an equidigital number, since it uses as much as digits as its factorization.

212333120117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 212333120117 its reverse (711021333212), we get a palindrome (923354453329).

The spelling of 212333120117 in words is "two hundred twelve billion, three hundred thirty-three million, one hundred twenty thousand, one hundred seventeen".