214130221 has 2 divisors, whose sum is σ = 214130222. Its totient is φ = 214130220.

The previous prime is 214130197. The next prime is 214130227. The reversal of 214130221 is 122031412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201782025 + 12348196 = 14205^2 + 3514^2 .

It is a cyclic number.

It is not a de Polignac number, because 214130221 - 2⁷ = 214130093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214130195 and 214130204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214130227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107065110 + 107065111.

It is an arithmetic number, because the mean of its divisors is an integer number (107065111).

Almost surely, 2^214130221 is an apocalyptic number.

It is an amenable number.

214130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

214130221 is an equidigital number, since it uses as much as digits as its factorization.

214130221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 214130221 is about 14633.1890235861. The cubic root of 214130221 is about 598.2637034520.

Adding to 214130221 its reverse (122031412), we get a palindrome (336161633).

The spelling of 214130221 in words is "two hundred fourteen million, one hundred thirty thousand, two hundred twenty-one".