14100221 has 4 divisors (see below), whose sum is σ = 14117532. Its totient is φ = 14082912.

The previous prime is 14100199. The next prime is 14100227. The reversal of 14100221 is 12200141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12200141 = 3373 ⋅3617.

It can be written as a sum of positive squares in 2 ways, for example, as 13039321 + 1060900 = 3611^2 + 1030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14100221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14100227) 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, 7370 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (3529383).

Almost surely, 2^14100221 is an apocalyptic number.

It is an amenable number.

14100221 is a deficient number, since it is larger than the sum of its proper divisors (17311).

14100221 is an equidigital number, since it uses as much as digits as its factorization.

14100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17310.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 14100221 is about 3755.0260984446. The cubic root of 14100221 is about 241.5879711001.

Adding to 14100221 its reverse (12200141), we get a palindrome (26300362).

The spelling of 14100221 in words is "fourteen million, one hundred thousand, two hundred twenty-one".