1214221159 has 2 divisors, whose sum is σ = 1214221160. Its totient is φ = 1214221158.

The previous prime is 1214221139. The next prime is 1214221181. The reversal of 1214221159 is 9511224121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214221159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214221139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607110579 + 607110580.

It is an arithmetic number, because the mean of its divisors is an integer number (607110580).

Almost surely, 2^1214221159 is an apocalyptic number.

1214221159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214221159 is an equidigital number, since it uses as much as digits as its factorization.

1214221159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 28.

The square root of 1214221159 is about 34845.6763315049. The cubic root of 1214221159 is about 1066.8399381388.

The spelling of 1214221159 in words is "one billion, two hundred fourteen million, two hundred twenty-one thousand, one hundred fifty-nine".