110223021 has 4 divisors (see below), whose sum is σ = 146964032. Its totient is φ = 73482012.

The previous prime is 110222993. The next prime is 110223023. The reversal of 110223021 is 120322011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120322011 = 3 ⋅40107337.

It is not a de Polignac number, because 110223021 - 2⁵ = 110222989 is a prime.

It is a super-2 number, since 2×110223021² = 24298228716732882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110222988 and 110223006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110223023) 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, 18370501 + ... + 18370506.

It is an arithmetic number, because the mean of its divisors is an integer number (36741008).

Almost surely, 2^110223021 is an apocalyptic number.

It is an amenable number.

110223021 is a deficient number, since it is larger than the sum of its proper divisors (36741011).

110223021 is an equidigital number, since it uses as much as digits as its factorization.

110223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36741010.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 110223021 is about 10498.7152071099. The cubic root of 110223021 is about 479.4655814294.

Adding to 110223021 its reverse (120322011), we get a palindrome (230545032).

The spelling of 110223021 in words is "one hundred ten million, two hundred twenty-three thousand, twenty-one".