12201122122 has 16 divisors (see below), whose sum is σ = 22146575040. Its totient is φ = 4921460928.

The previous prime is 12201122117. The next prime is 12201122159. The reversal of 12201122122 is 22122110221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12201122096 and 12201122105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25632372 + ... + 25632847.

It is an arithmetic number, because the mean of its divisors is an integer number (1384160940).

Almost surely, 2^12201122122 is an apocalyptic number.

12201122122 is a deficient number, since it is larger than the sum of its proper divisors (9945452918).

12201122122 is a wasteful number, since it uses less digits than its factorization.

12201122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51265245.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201122122 its reverse (22122110221), we get a palindrome (34323232343).

The spelling of 12201122122 in words is "twelve billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-two".