112112001021 has 24 divisors (see below), whose sum is σ = 157074580096. Its totient is φ = 71121093120.

The previous prime is 112112001007. The next prime is 112112001041. The reversal of 112112001021 is 120100211211.

It is not a de Polignac number, because 112112001021 - 2⁹ = 112112000509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112112000988 and 112112001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123276 + ... + 489306.

Almost surely, 2^112112001021 is an apocalyptic number.

It is an amenable number.

112112001021 is a deficient number, since it is larger than the sum of its proper divisors (44962579075).

112112001021 is a wasteful number, since it uses less digits than its factorization.

112112001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366273 (or 366250 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 112112001021 its reverse (120100211211), we get a palindrome (232212212232).

The spelling of 112112001021 in words is "one hundred twelve billion, one hundred twelve million, one thousand, twenty-one".