122220999947 has 2 divisors, whose sum is σ = 122220999948. Its totient is φ = 122220999946.

The previous prime is 122220999863. The next prime is 122221000001. The reversal of 122220999947 is 749999022221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122220999947 - 2²² = 122216805643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122220999892 and 122220999901.

It is not a weakly prime, because it can be changed into another prime (122220999347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110499973 + 61110499974.

It is an arithmetic number, because the mean of its divisors is an integer number (61110499974).

Almost surely, 2^122220999947 is an apocalyptic number.

122220999947 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220999947 is an equidigital number, since it uses as much as digits as its factorization.

122220999947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 122220999947 in words is "one hundred twenty-two billion, two hundred twenty million, nine hundred ninety-nine thousand, nine hundred forty-seven".