110012021 has 4 divisors (see below), whose sum is σ = 125728032. Its totient is φ = 94296012.

The previous prime is 110012011. The next prime is 110012027. The reversal of 110012021 is 120210011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 110012021 - 2¹⁰ = 110010997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110012027) 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, 7857995 + ... + 7858008.

It is an arithmetic number, because the mean of its divisors is an integer number (31432008).

Almost surely, 2^110012021 is an apocalyptic number.

It is an amenable number.

110012021 is a deficient number, since it is larger than the sum of its proper divisors (15716011).

110012021 is an equidigital number, since it uses as much as digits as its factorization.

110012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15716010.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 110012021 is about 10488.6615447349. The cubic root of 110012021 is about 479.1594389063.

Adding to 110012021 its reverse (120210011), we get a palindrome (230222032).

The spelling of 110012021 in words is "one hundred ten million, twelve thousand, twenty-one".