112240421021 has 4 divisors (see below), whose sum is σ = 112406212572. Its totient is φ = 112074629472.

The previous prime is 112240421011. The next prime is 112240421089. The reversal of 112240421021 is 120124042211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104542288900 + 7698132121 = 323330^2 + 87739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112240421021 is a prime.

It is a super-2 number, since 2×112240421021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112240420984 and 112240421002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112240421011) 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, 82894760 + ... + 82896113.

It is an arithmetic number, because the mean of its divisors is an integer number (28101553143).

Almost surely, 2^112240421021 is an apocalyptic number.

It is an amenable number.

112240421021 is a deficient number, since it is larger than the sum of its proper divisors (165791551).

112240421021 is an equidigital number, since it uses as much as digits as its factorization.

112240421021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165791550.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 112240421021 its reverse (120124042211), we get a palindrome (232364463232).

The spelling of 112240421021 in words is "one hundred twelve billion, two hundred forty million, four hundred twenty-one thousand, twenty-one".