2212213504321 has 2 divisors, whose sum is σ = 2212213504322. Its totient is φ = 2212213504320.

The previous prime is 2212213504309. The next prime is 2212213504337. The reversal of 2212213504321 is 1234053122122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2139008626225 + 73204878096 = 1462535^2 + 270564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212213504321 - 2⁵ = 2212213504289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212213504321.

It is not a weakly prime, because it can be changed into another prime (2212213504421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106106752160 + 1106106752161.

It is an arithmetic number, because the mean of its divisors is an integer number (1106106752161).

Almost surely, 2^{2212213504321} is an apocalyptic number.

It is an amenable number.

2212213504321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212213504321 is an equidigital number, since it uses as much as digits as its factorization.

2212213504321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 2212213504321 its reverse (1234053122122), we get a palindrome (3446266626443).

The spelling of 2212213504321 in words is "two trillion, two hundred twelve billion, two hundred thirteen million, five hundred four thousand, three hundred twenty-one".