1214221441 has 2 divisors, whose sum is σ = 1214221442. Its totient is φ = 1214221440.

The previous prime is 1214221427. The next prime is 1214221529. The reversal of 1214221441 is 1441224121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806787216 + 407434225 = 28404^2 + 20185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214221441 - 2¹¹ = 1214219393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1214221241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607110720 + 607110721.

It is an arithmetic number, because the mean of its divisors is an integer number (607110721).

Almost surely, 2^1214221441 is an apocalyptic number.

It is an amenable number.

1214221441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214221441 is an equidigital number, since it uses as much as digits as its factorization.

1214221441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 22.

The square root of 1214221441 is about 34845.6803779177. The cubic root of 1214221441 is about 1066.8400207291.

Adding to 1214221441 its reverse (1441224121), we get a palindrome (2655445562).

The spelling of 1214221441 in words is "one billion, two hundred fourteen million, two hundred twenty-one thousand, four hundred forty-one".