111112210212101 has 4 divisors (see below), whose sum is σ = 126985383099552. Its totient is φ = 95239037324652.

The previous prime is 111112210212097. The next prime is 111112210212103. The reversal of 111112210212101 is 101212012211111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111112210212101 - 2² = 111112210212097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111112210212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112210212103) 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, 7936586443715 + ... + 7936586443728.

It is an arithmetic number, because the mean of its divisors is an integer number (31746345774888).

Almost surely, 2^{111112210212101} is an apocalyptic number.

It is an amenable number.

111112210212101 is a deficient number, since it is larger than the sum of its proper divisors (15873172887451).

111112210212101 is an equidigital number, since it uses as much as digits as its factorization.

111112210212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873172887450.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111112210212101 its reverse (101212012211111), we get a palindrome (212324222423212).

The spelling of 111112210212101 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred ten million, two hundred twelve thousand, one hundred one".