110121221 has 8 divisors (see below), whose sum is σ = 126759360. Its totient is φ = 93709728.

The previous prime is 110121211. The next prime is 110121233. The reversal of 110121221 is 122121011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-110121221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55616 + ... + 57561.

It is an arithmetic number, because the mean of its divisors is an integer number (15844920).

Almost surely, 2^110121221 is an apocalyptic number.

It is an amenable number.

110121221 is a deficient number, since it is larger than the sum of its proper divisors (16638139).

110121221 is a wasteful number, since it uses less digits than its factorization.

110121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113323.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 110121221 is about 10493.8658748814. The cubic root of 110121221 is about 479.3179273670.

Adding to 110121221 its reverse (122121011), we get a palindrome (232242232).

It can be divided in two parts, 1101 and 21221, that added together give a palindrome (22322).

The spelling of 110121221 in words is "one hundred ten million, one hundred twenty-one thousand, two hundred twenty-one".