10000111201001 has 4 divisors (see below), whose sum is σ = 10588353036372. Its totient is φ = 9411869365632.

The previous prime is 10000111200991. The next prime is 10000111201027. The reversal of 10000111201001 is 10010211100001.

It is a happy number.

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 4187961695401 + 5812149505600 = 2046451^2 + 2410840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10000111201001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10000111201001.

It is not an unprimeable number, because it can be changed into a prime (10000111201051) 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, 294120917660 + ... + 294120917693.

It is an arithmetic number, because the mean of its divisors is an integer number (2647088259093).

Almost surely, 2^{10000111201001} is an apocalyptic number.

It is an amenable number.

10000111201001 is a deficient number, since it is larger than the sum of its proper divisors (588241835371).

10000111201001 is an equidigital number, since it uses as much as digits as its factorization.

10000111201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588241835370.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10000111201001 its reverse (10010211100001), we get a palindrome (20010322301002).

The spelling of 10000111201001 in words is "ten trillion, one hundred eleven million, two hundred one thousand, one".