10111010121211 has 4 divisors (see below), whose sum is σ = 10111530548800. Its totient is φ = 10110489693624.

The previous prime is 10111010121143. The next prime is 10111010121259. The reversal of 10111010121211 is 11212101011101.

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 10111010121211 - 2⁷ = 10111010121083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111010121191 and 10111010121200.

It is not an unprimeable number, because it can be changed into a prime (10111010121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260184651 + ... + 260223508.

It is an arithmetic number, because the mean of its divisors is an integer number (2527882637200).

Almost surely, 2^{10111010121211} is an apocalyptic number.

10111010121211 is a deficient number, since it is larger than the sum of its proper divisors (520427589).

10111010121211 is an equidigital number, since it uses as much as digits as its factorization.

10111010121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520427588.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10111010121211 its reverse (11212101011101), we get a palindrome (21323111132312).

The spelling of 10111010121211 in words is "ten trillion, one hundred eleven billion, ten million, one hundred twenty-one thousand, two hundred eleven".