1214334221 has 2 divisors, whose sum is σ = 1214334222. Its totient is φ = 1214334220.

The previous prime is 1214334193. The next prime is 1214334227. The reversal of 1214334221 is 1224334121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189284196 + 25050025 = 34486^2 + 5005^2 .

It is an emirp because it is prime and its reverse (1224334121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1214334221 - 2¹⁸ = 1214072077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214334227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607167110 + 607167111.

It is an arithmetic number, because the mean of its divisors is an integer number (607167111).

Almost surely, 2^1214334221 is an apocalyptic number.

It is an amenable number.

1214334221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214334221 is an equidigital number, since it uses as much as digits as its factorization.

1214334221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 1214334221 is about 34847.2986184008. The cubic root of 1214334221 is about 1066.8730499852.

Adding to 1214334221 its reverse (1224334121), we get a palindrome (2438668342).

It can be divided in two parts, 12143 and 34221, that added together give a palindrome (46364).

The spelling of 1214334221 in words is "one billion, two hundred fourteen million, three hundred thirty-four thousand, two hundred twenty-one".