11212111010011 has 4 divisors (see below), whose sum is σ = 11232608471272. Its totient is φ = 11191613548752.

The previous prime is 11212111009987. The next prime is 11212111010021. The reversal of 11212111010011 is 11001011121211.

11212111010011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11212111010011 - 2²³ = 11212102621403 is a prime.

It is a super-2 number, since 2×11212111010011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212111009973 and 11212111010000.

It is not an unprimeable number, because it can be changed into a prime (11212111010021) 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, 10248729810 + ... + 10248730903.

It is an arithmetic number, because the mean of its divisors is an integer number (2808152117818).

Almost surely, 2^{11212111010011} is an apocalyptic number.

11212111010011 is a deficient number, since it is larger than the sum of its proper divisors (20497461261).

11212111010011 is an equidigital number, since it uses as much as digits as its factorization.

11212111010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20497461260.

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

Adding to 11212111010011 its reverse (11001011121211), we get a palindrome (22213122131222).

The spelling of 11212111010011 in words is "eleven trillion, two hundred twelve billion, one hundred eleven million, ten thousand, eleven".