10112104021 has 4 divisors (see below), whose sum is σ = 10114331500. Its totient is φ = 10109876544.

The previous prime is 10112103997. The next prime is 10112104063. The reversal of 10112104021 is 12040121101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12040121101 = 859 ⋅14016439.

It can be written as a sum of positive squares in 2 ways, for example, as 6414247921 + 3697856100 = 80089^2 + 60810^2 .

It is a cyclic number.

It is not a de Polignac number, because 10112104021 - 2⁹ = 10112103509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112103992 and 10112104010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112104081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106916 + ... + 1116013.

It is an arithmetic number, because the mean of its divisors is an integer number (2528582875).

Almost surely, 2^10112104021 is an apocalyptic number.

It is an amenable number.

10112104021 is a deficient number, since it is larger than the sum of its proper divisors (2227479).

10112104021 is an equidigital number, since it uses as much as digits as its factorization.

10112104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227478.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10112104021 its reverse (12040121101), we get a palindrome (22152225122).

The spelling of 10112104021 in words is "ten billion, one hundred twelve million, one hundred four thousand, twenty-one".