214434503221 has 2 divisors, whose sum is σ = 214434503222. Its totient is φ = 214434503220.

The previous prime is 214434503201. The next prime is 214434503273. The reversal of 214434503221 is 122305434412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113936627025 + 100497876196 = 337545^2 + 317014^2 .

It is a cyclic number.

It is not a de Polignac number, because 214434503221 - 2²³ = 214426114613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214434503201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107217251610 + 107217251611.

It is an arithmetic number, because the mean of its divisors is an integer number (107217251611).

Almost surely, 2^214434503221 is an apocalyptic number.

It is an amenable number.

214434503221 is a deficient number, since it is larger than the sum of its proper divisors (1).

214434503221 is an equidigital number, since it uses as much as digits as its factorization.

214434503221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 214434503221 its reverse (122305434412), we get a palindrome (336739937633).

The spelling of 214434503221 in words is "two hundred fourteen billion, four hundred thirty-four million, five hundred three thousand, two hundred twenty-one".