110221021 has 16 divisors (see below), whose sum is σ = 114701184. Its totient is φ = 105871104.

The previous prime is 110221019. The next prime is 110221031. The reversal of 110221021 is 120122011.

It is a cyclic number.

It is not a de Polignac number, because 110221021 - 2¹ = 110221019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110220989 and 110221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221031) 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, 804465 + ... + 804601.

It is an arithmetic number, because the mean of its divisors is an integer number (7168824).

Almost surely, 2^110221021 is an apocalyptic number.

It is an amenable number.

110221021 is a deficient number, since it is larger than the sum of its proper divisors (4480163).

110221021 is a wasteful number, since it uses less digits than its factorization.

110221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 110221021 is about 10498.6199569277. The cubic root of 110221021 is about 479.4626814395.

Adding to 110221021 its reverse (120122011), we get a palindrome (230343032).

The spelling of 110221021 in words is "one hundred ten million, two hundred twenty-one thousand, twenty-one".