12001120122 has 16 divisors (see below), whose sum is σ = 24033461760. Its totient is φ = 3995169792.

The previous prime is 12001120121. The next prime is 12001120133. The reversal of 12001120122 is 22102110021.

It is a junction number, because it is equal to n+sod(n) for n = 12001120098 and 12001120107.

It is not an unprimeable number, because it can be changed into a prime (12001120121) by changing a digit.

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, 1295898 + ... + 1305125.

It is an arithmetic number, because the mean of its divisors is an integer number (1502091360).

Almost surely, 2^12001120122 is an apocalyptic number.

12001120122 is an abundant number, since it is smaller than the sum of its proper divisors (12032341638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001120122 is a wasteful number, since it uses less digits than its factorization.

12001120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601797.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001120122 its reverse (22102110021), we get a palindrome (34103230143).

The spelling of 12001120122 in words is "twelve billion, one million, one hundred twenty thousand, one hundred twenty-two".