122212247 has 2 divisors, whose sum is σ = 122212248. Its totient is φ = 122212246.

The previous prime is 122212213. The next prime is 122212273. The reversal of 122212247 is 742212221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122212247 - 2⁶ = 122212183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122211247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106123 + 61106124.

It is an arithmetic number, because the mean of its divisors is an integer number (61106124).

Almost surely, 2^122212247 is an apocalyptic number.

122212247 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212247 is an equidigital number, since it uses as much as digits as its factorization.

122212247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 23.

The square root of 122212247 is about 11054.9648122461. The cubic root of 122212247 is about 496.2550162237.

Adding to 122212247 its reverse (742212221), we get a palindrome (864424468).

The spelling of 122212247 in words is "one hundred twenty-two million, two hundred twelve thousand, two hundred forty-seven".