214000221 has 4 divisors (see below), whose sum is σ = 285333632. Its totient is φ = 142666812.

The previous prime is 214000217. The next prime is 214000231. The reversal of 214000221 is 122000412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 214000221 - 2² = 214000217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214000197 and 214000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214000201) 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 3 ways as a sum of consecutive naturals, for example, 35666701 + ... + 35666706.

It is an arithmetic number, because the mean of its divisors is an integer number (71333408).

Almost surely, 2^214000221 is an apocalyptic number.

It is an amenable number.

214000221 is a deficient number, since it is larger than the sum of its proper divisors (71333411).

214000221 is an equidigital number, since it uses as much as digits as its factorization.

214000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71333410.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 214000221 is about 14628.7463919503. The cubic root of 214000221 is about 598.1426088746.

Adding to 214000221 its reverse (122000412), we get a palindrome (336000633).

The spelling of 214000221 in words is "two hundred fourteen million, two hundred twenty-one", and thus it is an aban number.