10112221021 has 16 divisors (see below), whose sum is σ = 12167884800. Its totient is φ = 8209533168.

The previous prime is 10112221013. The next prime is 10112221039. The reversal of 10112221021 is 12012221101.

It is a cyclic number.

It is not a de Polignac number, because 10112221021 - 2³ = 10112221013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10112220992 and 10112221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112221921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035600 + ... + 1045318.

It is an arithmetic number, because the mean of its divisors is an integer number (760492800).

Almost surely, 2^10112221021 is an apocalyptic number.

It is an amenable number.

10112221021 is a deficient number, since it is larger than the sum of its proper divisors (2055663779).

10112221021 is an equidigital number, since it uses as much as digits as its factorization.

10112221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17568.

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

Adding to 10112221021 its reverse (12012221101), we get a palindrome (22124442122).

The spelling of 10112221021 in words is "ten billion, one hundred twelve million, two hundred twenty-one thousand, twenty-one".