112120211021 has 16 divisors (see below), whose sum is σ = 138030407424. Its totient is φ = 88687160064.

The previous prime is 112120210991. The next prime is 112120211023. The reversal of 112120211021 is 120112021211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112120211021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112120210987 and 112120211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120211023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189941 + ... + 510213.

It is an arithmetic number, because the mean of its divisors is an integer number (8626900464).

Almost surely, 2^112120211021 is an apocalyptic number.

It is an amenable number.

112120211021 is a deficient number, since it is larger than the sum of its proper divisors (25910196403).

112120211021 is a wasteful number, since it uses less digits than its factorization.

112120211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324140.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112120211021 its reverse (120112021211), we get a palindrome (232232232232).

The spelling of 112120211021 in words is "one hundred twelve billion, one hundred twenty million, two hundred eleven thousand, twenty-one".