214404120221 has 2 divisors, whose sum is σ = 214404120222. Its totient is φ = 214404120220.

The previous prime is 214404120209. The next prime is 214404120253. The reversal of 214404120221 is 122021404412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126942564100 + 87461556121 = 356290^2 + 295739^2 .

It is a cyclic number.

It is not a de Polignac number, because 214404120221 - 2³⁰ = 213330378397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214404122221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107202060110 + 107202060111.

It is an arithmetic number, because the mean of its divisors is an integer number (107202060111).

Almost surely, 2^214404120221 is an apocalyptic number.

It is an amenable number.

214404120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

214404120221 is an equidigital number, since it uses as much as digits as its factorization.

214404120221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 214404120221 its reverse (122021404412), we get a palindrome (336425524633).

The spelling of 214404120221 in words is "two hundred fourteen billion, four hundred four million, one hundred twenty thousand, two hundred twenty-one".