10111211120111 has 4 divisors (see below), whose sum is σ = 10137889777800. Its totient is φ = 10084532462424.

The previous prime is 10111211120081. The next prime is 10111211120123. The reversal of 10111211120111 is 11102111211101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10111211120111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111211120161) 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, 13339328276 + ... + 13339329033.

It is an arithmetic number, because the mean of its divisors is an integer number (2534472444450).

Almost surely, 2^{10111211120111} is an apocalyptic number.

10111211120111 is a deficient number, since it is larger than the sum of its proper divisors (26678657689).

10111211120111 is an equidigital number, since it uses as much as digits as its factorization.

10111211120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26678657688.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 10111211120111 its reverse (11102111211101), we get a palindrome (21213322331212).

The spelling of 10111211120111 in words is "ten trillion, one hundred eleven billion, two hundred eleven million, one hundred twenty thousand, one hundred eleven".