10012120110001 has 4 divisors (see below), whose sum is σ = 10035901868404. Its totient is φ = 9988338351600.

The previous prime is 10012120109989. The next prime is 10012120110011. The reversal of 10012120110001 is 10001102121001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4239748674225 + 5772371435776 = 2059065^2 + 2402576^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012120110001 - 2¹⁵ = 10012120077233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10012120110001.

It is not an unprimeable number, because it can be changed into a prime (10012120110011) 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, 11890878570 + ... + 11890879411.

It is an arithmetic number, because the mean of its divisors is an integer number (2508975467101).

Almost surely, 2^{10012120110001} is an apocalyptic number.

It is an amenable number.

10012120110001 is a deficient number, since it is larger than the sum of its proper divisors (23781758403).

10012120110001 is an equidigital number, since it uses as much as digits as its factorization.

10012120110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23781758402.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10012120110001 its reverse (10001102121001), we get a palindrome (20013222231002).

The spelling of 10012120110001 in words is "ten trillion, twelve billion, one hundred twenty million, one hundred ten thousand, one".