1216334051 has 2 divisors, whose sum is σ = 1216334052. Its totient is φ = 1216334050.

The previous prime is 1216334033. The next prime is 1216334069. The reversal of 1216334051 is 1504336121.

It is a balanced prime because it is at equal distance from previous prime (1216334033) and next prime (1216334069).

It is a cyclic number.

It is not a de Polignac number, because 1216334051 - 2¹⁴ = 1216317667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1216334051.

It is not a weakly prime, because it can be changed into another prime (1216334351) 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, 608167025 + 608167026.

It is an arithmetic number, because the mean of its divisors is an integer number (608167026).

Almost surely, 2^1216334051 is an apocalyptic number.

1216334051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216334051 is an equidigital number, since it uses as much as digits as its factorization.

1216334051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1216334051 is about 34875.9810041237. The cubic root of 1216334051 is about 1067.4583898207.

The spelling of 1216334051 in words is "one billion, two hundred sixteen million, three hundred thirty-four thousand, fifty-one".