214353233221 has 2 divisors, whose sum is σ = 214353233222. Its totient is φ = 214353233220.

The previous prime is 214353233177. The next prime is 214353233279. The reversal of 214353233221 is 122332353412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129517932996 + 84835300225 = 359886^2 + 291265^2 .

It is a cyclic number.

It is not a de Polignac number, because 214353233221 - 2⁷ = 214353233093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214353233021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107176616610 + 107176616611.

It is an arithmetic number, because the mean of its divisors is an integer number (107176616611).

Almost surely, 2^214353233221 is an apocalyptic number.

It is an amenable number.

214353233221 is a deficient number, since it is larger than the sum of its proper divisors (1).

214353233221 is an equidigital number, since it uses as much as digits as its factorization.

214353233221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

Adding to 214353233221 its reverse (122332353412), we get a palindrome (336685586633).

The spelling of 214353233221 in words is "two hundred fourteen billion, three hundred fifty-three million, two hundred thirty-three thousand, two hundred twenty-one".