12120000100001 has 12 divisors (see below), whose sum is σ = 13434656354112. Its totient is φ = 10911099828288.

The previous prime is 12120000099997. The next prime is 12120000100003. The reversal of 12120000100001 is 10000100002121.

It is not a de Polignac number, because 12120000100001 - 2² = 12120000099997 is a prime.

It is a Duffinian number.

12120000100001 is a modest number, since divided by 100001 gives 1212 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12120000100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911682845 + ... + 911696138.

It is an arithmetic number, because the mean of its divisors is an integer number (1119554696176).

Almost surely, 2^{12120000100001} is an apocalyptic number.

It is an amenable number.

12120000100001 is a deficient number, since it is larger than the sum of its proper divisors (1314656254111).

12120000100001 is a wasteful number, since it uses less digits than its factorization.

12120000100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823379040 (or 1823379023 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12120000100001 its reverse (10000100002121), we get a palindrome (22120100102122).

The spelling of 12120000100001 in words is "twelve trillion, one hundred twenty billion, one hundred thousand, one".