112120221120021 has 20 divisors (see below), whose sum is σ = 167490923163564. Its totient is φ = 74745612864000.

The previous prime is 112120221119923. The next prime is 112120221120029. The reversal of 112120221120021 is 120021122021211.

112120221120021 is a `hidden beast` number, since 11 + 21 + 202 + 211 + 200 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53121138980625 + 58999082139396 = 7288425^2 + 7681086^2 .

It is not a de Polignac number, because 112120221120021 - 2²¹ = 112120219022869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112120221119976 and 112120221120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120221120029) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6036690 + ... + 16145651.

Almost surely, 2^{112120221120021} is an apocalyptic number.

It is an amenable number.

112120221120021 is a deficient number, since it is larger than the sum of its proper divisors (55370702043543).

112120221120021 is an equidigital number, since it uses as much as digits as its factorization.

112120221120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22244754 (or 22244745 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112120221120021 its reverse (120021122021211), we get a palindrome (232141343141232).

The spelling of 112120221120021 in words is "one hundred twelve trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, twenty-one".