214026221 has 4 divisors (see below), whose sum is σ = 216431100. Its totient is φ = 211621344.

The previous prime is 214026199. The next prime is 214026229. The reversal of 214026221 is 122620412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67010596 + 147015625 = 8186^2 + 12125^2 .

It is a cyclic number.

It is not a de Polignac number, because 214026221 - 2¹⁰ = 214025197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214026193 and 214026202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214026229) 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, 1202306 + ... + 1202483.

It is an arithmetic number, because the mean of its divisors is an integer number (54107775).

Almost surely, 2^214026221 is an apocalyptic number.

It is an amenable number.

214026221 is a deficient number, since it is larger than the sum of its proper divisors (2404879).

214026221 is an equidigital number, since it uses as much as digits as its factorization.

214026221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404878.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 214026221 is about 14629.6350262062. The cubic root of 214026221 is about 598.1668317126.

Adding to 214026221 its reverse (122620412), we get a palindrome (336646633).

The spelling of 214026221 in words is "two hundred fourteen million, twenty-six thousand, two hundred twenty-one".