10001001212011 has 4 divisors (see below), whose sum is σ = 10345863322800. Its totient is φ = 9656139101224.

The previous prime is 10001001211987. The next prime is 10001001212047. The reversal of 10001001212011 is 11021210010001.

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

It is a cyclic number.

It is not a de Polignac number, because 10001001212011 - 2¹⁵ = 10001001179243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001008212011) 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, 172431055351 + ... + 172431055408.

It is an arithmetic number, because the mean of its divisors is an integer number (2586465830700).

Almost surely, 2^{10001001212011} is an apocalyptic number.

10001001212011 is a deficient number, since it is larger than the sum of its proper divisors (344862110789).

10001001212011 is an equidigital number, since it uses as much as digits as its factorization.

10001001212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344862110788.

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

Adding to 10001001212011 its reverse (11021210010001), we get a palindrome (21022211222012).

The spelling of 10001001212011 in words is "ten trillion, one billion, one million, two hundred twelve thousand, eleven".