12001000100122 has 32 divisors (see below), whose sum is σ = 19973541867840. Its totient is φ = 5361818964480.

The previous prime is 12001000100113. The next prime is 12001000100129. The reversal of 12001000100122 is 22100100010021.

It is a junction number, because it is equal to n+sod(n) for n = 12001000100099 and 12001000100108.

It is not an unprimeable number, because it can be changed into a prime (12001000100129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9059248 + ... + 10299124.

It is an arithmetic number, because the mean of its divisors is an integer number (624173183370).

Almost surely, 2^{12001000100122} is an apocalyptic number.

12001000100122 is a deficient number, since it is larger than the sum of its proper divisors (7972541767718).

12001000100122 is a wasteful number, since it uses less digits than its factorization.

12001000100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247406.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12001000100122 its reverse (22100100010021), we get a palindrome (34101100110143).

The spelling of 12001000100122 in words is "twelve trillion, one billion, one hundred thousand, one hundred twenty-two".