122220999347 has 2 divisors, whose sum is σ = 122220999348. Its totient is φ = 122220999346.

The previous prime is 122220999343. The next prime is 122220999349. The reversal of 122220999347 is 743999022221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122220999347 - 2² = 122220999343 is a prime.

Together with 122220999349, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 122220999295 and 122220999304.

It is not a weakly prime, because it can be changed into another prime (122220999343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110499673 + 61110499674.

It is an arithmetic number, because the mean of its divisors is an integer number (61110499674).

Almost surely, 2^122220999347 is an apocalyptic number.

122220999347 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220999347 is an equidigital number, since it uses as much as digits as its factorization.

122220999347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 122220999347 in words is "one hundred twenty-two billion, two hundred twenty million, nine hundred ninety-nine thousand, three hundred forty-seven".