12012110020001 has 12 divisors (see below), whose sum is σ = 15048137828052. Its totient is φ = 9504087048288.

The previous prime is 12012110019991. The next prime is 12012110020033. The reversal of 12012110020001 is 10002001121021.

It can be written as a sum of positive squares in 2 ways, for example, as 1033994091025 + 10978115928976 = 1016855^2 + 3313324^2 .

It is not a de Polignac number, because 12012110020001 - 2²⁶ = 12012042911137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012110020061) 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, 9428657150 + ... + 9428658423.

It is an arithmetic number, because the mean of its divisors is an integer number (1254011485671).

Almost surely, 2^{12012110020001} is an apocalyptic number.

It is an amenable number.

12012110020001 is a deficient number, since it is larger than the sum of its proper divisors (3036027808051).

12012110020001 is a wasteful number, since it uses less digits than its factorization.

12012110020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18857315600 (or 18857315593 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12012110020001 its reverse (10002001121021), we get a palindrome (22014111141022).

The spelling of 12012110020001 in words is "twelve trillion, twelve billion, one hundred ten million, twenty thousand, one".