112233210021 has 24 divisors (see below), whose sum is σ = 162878861600. Its totient is φ = 74470215456.

The previous prime is 112233209989. The next prime is 112233210041. The reversal of 112233210021 is 120012332211.

It is not a de Polignac number, because 112233210021 - 2⁵ = 112233209989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112233209976 and 112233210003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112233210041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1685466 + ... + 1750788.

Almost surely, 2^112233210021 is an apocalyptic number.

It is an amenable number.

112233210021 is a deficient number, since it is larger than the sum of its proper divisors (50645651579).

112233210021 is a wasteful number, since it uses less digits than its factorization.

112233210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66225 (or 66222 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 112233210021 its reverse (120012332211), we get a palindrome (232245542232).

The spelling of 112233210021 in words is "one hundred twelve billion, two hundred thirty-three million, two hundred ten thousand, twenty-one".