12001200122 has 8 divisors (see below), whose sum is σ = 18002753076. Its totient is φ = 6000282432.

The previous prime is 12001200059. The next prime is 12001200131. The reversal of 12001200122 is 22100210021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7106658601 + 4894541521 = 84301^2 + 69961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108383 + ... + 189074.

Almost surely, 2^12001200122 is an apocalyptic number.

12001200122 is a deficient number, since it is larger than the sum of its proper divisors (6001552954).

12001200122 is a wasteful number, since it uses less digits than its factorization.

12001200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317632.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12001200122 its reverse (22100210021), we get a palindrome (34101410143).

The spelling of 12001200122 in words is "twelve billion, one million, two hundred thousand, one hundred twenty-two".