10211111120111 has 4 divisors (see below), whose sum is σ = 11139393949224. Its totient is φ = 9282828291000.

The previous prime is 10211111120099. The next prime is 10211111120137. The reversal of 10211111120111 is 11102111111201.

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

It is not a de Polignac number, because 10211111120111 - 2¹⁴ = 10211111103727 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 (10211111120191) 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, 464141414540 + ... + 464141414561.

It is an arithmetic number, because the mean of its divisors is an integer number (2784848487306).

Almost surely, 2^{10211111120111} is an apocalyptic number.

10211111120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10211111120111 is a deficient number, since it is larger than the sum of its proper divisors (928282829113).

10211111120111 is an equidigital number, since it uses as much as digits as its factorization.

10211111120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928282829112.

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

Adding to 10211111120111 its reverse (11102111111201), we get a palindrome (21313222231312).

It can be divided in two parts, 102111111201 and 11, that multiplied together give a palindrome (1123222223211).

The spelling of 10211111120111 in words is "ten trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty thousand, one hundred eleven".