122216747 has 2 divisors, whose sum is σ = 122216748. Its totient is φ = 122216746.

The previous prime is 122216681. The next prime is 122216749. The reversal of 122216747 is 747612221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122216747 is a prime.

Together with 122216749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122216749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61108373 + 61108374.

It is an arithmetic number, because the mean of its divisors is an integer number (61108374).

Almost surely, 2^122216747 is an apocalyptic number.

122216747 is a deficient number, since it is larger than the sum of its proper divisors (1).

122216747 is an equidigital number, since it uses as much as digits as its factorization.

122216747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 32.

The square root of 122216747 is about 11055.1683388359. The cubic root of 122216747 is about 496.2611070486.

Adding to 122216747 its reverse (747612221), we get a palindrome (869828968).

The spelling of 122216747 in words is "one hundred twenty-two million, two hundred sixteen thousand, seven hundred forty-seven".