1214421331 has 2 divisors, whose sum is σ = 1214421332. Its totient is φ = 1214421330.

The previous prime is 1214421323. The next prime is 1214421337. The reversal of 1214421331 is 1331244121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1214421331 - 2³ = 1214421323 is a prime.

It is a super-2 number, since 2×1214421331² = 2949638338375623122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1214421337) 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, 607210665 + 607210666.

It is an arithmetic number, because the mean of its divisors is an integer number (607210666).

Almost surely, 2^1214421331 is an apocalyptic number.

1214421331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214421331 is an equidigital number, since it uses as much as digits as its factorization.

1214421331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 1214421331 is about 34848.5484776626. The cubic root of 1214421331 is about 1066.8985600102.

Adding to 1214421331 its reverse (1331244121), we get a palindrome (2545665452).

The spelling of 1214421331 in words is "one billion, two hundred fourteen million, four hundred twenty-one thousand, three hundred thirty-one".