1212210319 has 2 divisors, whose sum is σ = 1212210320. Its totient is φ = 1212210318.

The previous prime is 1212210277. The next prime is 1212210359. The reversal of 1212210319 is 9130122121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210319 - 2⁹ = 1212209807 is a prime.

It is a super-4 number, since 4×1212210319⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1212210319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212210359) 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, 606105159 + 606105160.

It is an arithmetic number, because the mean of its divisors is an integer number (606105160).

Almost surely, 2^1212210319 is an apocalyptic number.

1212210319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210319 is an equidigital number, since it uses as much as digits as its factorization.

1212210319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1212210319 is about 34816.8108677403. The cubic root of 1212210319 is about 1066.2506908056.

The spelling of 1212210319 in words is "one billion, two hundred twelve million, two hundred ten thousand, three hundred nineteen".