122212417 has 2 divisors, whose sum is σ = 122212418. Its totient is φ = 122212416.

The previous prime is 122212403. The next prime is 122212421. The reversal of 122212417 is 714212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98485776 + 23726641 = 9924^2 + 4871^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212417 - 2¹¹ = 122210369 is a prime.

It is not a weakly prime, because it can be changed into another prime (122212817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106208 + 61106209.

It is an arithmetic number, because the mean of its divisors is an integer number (61106209).

Almost surely, 2^122212417 is an apocalyptic number.

It is an amenable number.

122212417 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212417 is an equidigital number, since it uses as much as digits as its factorization.

122212417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 22.

The square root of 122212417 is about 11054.9725010965. The cubic root of 122212417 is about 496.2552463243.

Adding to 122212417 its reverse (714212221), we get a palindrome (836424638).

The spelling of 122212417 in words is "one hundred twenty-two million, two hundred twelve thousand, four hundred seventeen".