122221163639 has 2 divisors, whose sum is σ = 122221163640. Its totient is φ = 122221163638.

The previous prime is 122221163573. The next prime is 122221163653. The reversal of 122221163639 is 936361122221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122221163639 - 2²⁰ = 122220115063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221163699) 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, 61110581819 + 61110581820.

It is an arithmetic number, because the mean of its divisors is an integer number (61110581820).

Almost surely, 2^122221163639 is an apocalyptic number.

122221163639 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221163639 is an equidigital number, since it uses as much as digits as its factorization.

122221163639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The spelling of 122221163639 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred sixty-three thousand, six hundred thirty-nine".