122212021211617 has 2 divisors, whose sum is σ = 122212021211618. Its totient is φ = 122212021211616.

The previous prime is 122212021211597. The next prime is 122212021211633. The reversal of 122212021211617 is 716112120212221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114962120317521 + 7249900894096 = 10722039^2 + 2692564^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212021211617 - 2³⁵ = 122177661473249 is a prime.

It is not a weakly prime, because it can be changed into another prime (122212021211677) 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, 61106010605808 + 61106010605809.

It is an arithmetic number, because the mean of its divisors is an integer number (61106010605809).

Almost surely, 2^{122212021211617} is an apocalyptic number.

It is an amenable number.

122212021211617 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212021211617 is an equidigital number, since it uses as much as digits as its factorization.

122212021211617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 122212021211617 its reverse (716112120212221), we get a palindrome (838324141423838).

The spelling of 122212021211617 in words is "one hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand, six hundred seventeen".