10211011211111 has 4 divisors (see below), whose sum is σ = 10384079197800. Its totient is φ = 10037943224424.

The previous prime is 10211011211099. The next prime is 10211011211123. The reversal of 10211011211111 is 11111211011201.

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

It is an interprime number because it is at equal distance from previous prime (10211011211099) and next prime (10211011211123).

It is a cyclic number.

It is not a de Polignac number, because 10211011211111 - 2³⁰ = 10209937469287 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 (10211011211911) 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, 86533993256 + ... + 86533993373.

It is an arithmetic number, because the mean of its divisors is an integer number (2596019799450).

Almost surely, 2^{10211011211111} is an apocalyptic number.

10211011211111 is a deficient number, since it is larger than the sum of its proper divisors (173067986689).

10211011211111 is an equidigital number, since it uses as much as digits as its factorization.

10211011211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173067986688.

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

Adding to 10211011211111 its reverse (11111211011201), we get a palindrome (21322222222312).

The spelling of 10211011211111 in words is "ten trillion, two hundred eleven billion, eleven million, two hundred eleven thousand, one hundred eleven".