12001012110101 has 4 divisors (see below), whose sum is σ = 13715442411552. Its totient is φ = 10286581808652.

The previous prime is 12001012110091. The next prime is 12001012110151. The reversal of 12001012110101 is 10101121010021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12001012110101 - 2¹⁰ = 12001012109077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001012110151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857215150715 + ... + 857215150728.

It is an arithmetic number, because the mean of its divisors is an integer number (3428860602888).

Almost surely, 2^{12001012110101} is an apocalyptic number.

It is an amenable number.

12001012110101 is a deficient number, since it is larger than the sum of its proper divisors (1714430301451).

12001012110101 is an equidigital number, since it uses as much as digits as its factorization.

12001012110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714430301450.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12001012110101 its reverse (10101121010021), we get a palindrome (22102133120122).

The spelling of 12001012110101 in words is "twelve trillion, one billion, twelve million, one hundred ten thousand, one hundred one".