214444221 has 16 divisors (see below), whose sum is σ = 292940544. Its totient is φ = 139474944.

The previous prime is 214444207. The next prime is 214444229. The reversal of 214444221 is 122444412.

It is not a de Polignac number, because 214444221 - 2¹⁸ = 214182077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214444191 and 214444200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214444229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45261 + ... + 49773.

It is an arithmetic number, because the mean of its divisors is an integer number (18308784).

Almost surely, 2^214444221 is an apocalyptic number.

It is an amenable number.

214444221 is a deficient number, since it is larger than the sum of its proper divisors (78496323).

214444221 is a wasteful number, since it uses less digits than its factorization.

214444221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900.

The product of its digits is 2048, while the sum is 24.

The square root of 214444221 is about 14643.9141284016. The cubic root of 214444221 is about 598.5559914088. Note that the first 3 decimals are identical.

Adding to 214444221 its reverse (122444412), we get a palindrome (336888633).

The spelling of 214444221 in words is "two hundred fourteen million, four hundred forty-four thousand, two hundred twenty-one".