12001222322122 has 32 divisors (see below), whose sum is σ = 19859396019840. Its totient is φ = 5393865443520.

The previous prime is 12001222322101. The next prime is 12001222322197. The reversal of 12001222322122 is 22122322210021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12001222322093 and 12001222322102.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 2575597 + ... + 5534992.

It is an arithmetic number, because the mean of its divisors is an integer number (620606125620).

Almost surely, 2^{12001222322122} is an apocalyptic number.

12001222322122 is a deficient number, since it is larger than the sum of its proper divisors (7858173697718).

12001222322122 is a wasteful number, since it uses less digits than its factorization.

12001222322122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111358.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12001222322122 its reverse (22122322210021), we get a palindrome (34123544532143).

The spelling of 12001222322122 in words is "twelve trillion, one billion, two hundred twenty-two million, three hundred twenty-two thousand, one hundred twenty-two".