112021111220111 has 4 divisors (see below), whose sum is σ = 112021242953592. Its totient is φ = 112020979486632.

The previous prime is 112021111220101. The next prime is 112021111220159. The reversal of 112021111220111 is 111022111120211.

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-112021111220111 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 112021111220111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021111220101) 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, 64582856 + ... + 66294701.

It is an arithmetic number, because the mean of its divisors is an integer number (28005310738398).

Almost surely, 2^{112021111220111} is an apocalyptic number.

112021111220111 is a deficient number, since it is larger than the sum of its proper divisors (131733481).

112021111220111 is an equidigital number, since it uses as much as digits as its factorization.

112021111220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131733480.

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

Adding to 112021111220111 its reverse (111022111120211), we get a palindrome (223043222340322).

The spelling of 112021111220111 in words is "one hundred twelve trillion, twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred eleven".