9912122212199 has 4 divisors (see below), whose sum is σ = 10343084047536. Its totient is φ = 9481160376864.

The previous prime is 9912122212159. The next prime is 9912122212217.

9912122212199 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9912122212199 - 2⁴⁰ = 8812610584423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912122212159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215480917634 + ... + 215480917679.

It is an arithmetic number, because the mean of its divisors is an integer number (2585771011884).

Almost surely, 2^{9912122212199} is an apocalyptic number.

9912122212199 is a deficient number, since it is larger than the sum of its proper divisors (430961835337).

9912122212199 is a wasteful number, since it uses less digits than its factorization.

9912122212199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430961835336.

The product of its digits is 209952, while the sum is 50.

The spelling of 9912122212199 in words is "nine trillion, nine hundred twelve billion, one hundred twenty-two million, two hundred twelve thousand, one hundred ninety-nine".