10111101220111 has 4 divisors (see below), whose sum is σ = 10111215020400. Its totient is φ = 10110987419824.

The previous prime is 10111101220061. The next prime is 10111101220139. The reversal of 10111101220111 is 11102210111101.

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 10111101220111 - 2¹³ = 10111101211919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111101220091 and 10111101220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111101220511) 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, 56766766 + ... + 56944603.

It is an arithmetic number, because the mean of its divisors is an integer number (2527803755100).

Almost surely, 2^{10111101220111} is an apocalyptic number.

10111101220111 is a deficient number, since it is larger than the sum of its proper divisors (113800289).

10111101220111 is an equidigital number, since it uses as much as digits as its factorization.

10111101220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113800288.

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

Adding to 10111101220111 its reverse (11102210111101), we get a palindrome (21213311331212).

The spelling of 10111101220111 in words is "ten trillion, one hundred eleven billion, one hundred one million, two hundred twenty thousand, one hundred eleven".