214543221 has 8 divisors (see below), whose sum is σ = 286215264. Its totient is φ = 142950000.

The previous prime is 214543159. The next prime is 214543237. The reversal of 214543221 is 122345412.

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

It is not a de Polignac number, because 214543221 - 2¹³ = 214535029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214543191 and 214543200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214543271) 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, 13030 + ... + 24471.

It is an arithmetic number, because the mean of its divisors is an integer number (35776908).

Almost surely, 2^214543221 is an apocalyptic number.

It is an amenable number.

214543221 is a deficient number, since it is larger than the sum of its proper divisors (71672043).

214543221 is a wasteful number, since it uses less digits than its factorization.

214543221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39411.

The product of its digits is 1920, while the sum is 24.

The square root of 214543221 is about 14647.2939821661. The cubic root of 214543221 is about 598.6480867276.

Adding to 214543221 its reverse (122345412), we get a palindrome (336888633).

The spelling of 214543221 in words is "two hundred fourteen million, five hundred forty-three thousand, two hundred twenty-one".