122221219999 has 2 divisors, whose sum is σ = 122221220000. Its totient is φ = 122221219998.

The previous prime is 122221219937. The next prime is 122221220053. The reversal of 122221219999 is 999912122221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122221219999 - 2³³ = 113631285407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221211999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110609999 + 61110610000.

It is an arithmetic number, because the mean of its divisors is an integer number (61110610000).

Almost surely, 2^122221219999 is an apocalyptic number.

122221219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221219999 is an equidigital number, since it uses as much as digits as its factorization.

122221219999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 49.

The spelling of 122221219999 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred ninety-nine".