112021012111 has 4 divisors (see below), whose sum is σ = 112222127592. Its totient is φ = 111819896632.

The previous prime is 112021012093. The next prime is 112021012127. The reversal of 112021012111 is 111210120211.

It is a happy number.

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 112021012111 - 2¹⁷ = 112020881039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112021012091 and 112021012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021012211) 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, 100556905 + ... + 100558018.

It is an arithmetic number, because the mean of its divisors is an integer number (28055531898).

Almost surely, 2^112021012111 is an apocalyptic number.

112021012111 is a deficient number, since it is larger than the sum of its proper divisors (201115481).

112021012111 is an equidigital number, since it uses as much as digits as its factorization.

112021012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201115480.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112021012111 its reverse (111210120211), we get a palindrome (223231132322).

The spelling of 112021012111 in words is "one hundred twelve billion, twenty-one million, twelve thousand, one hundred eleven".