2220001213321 has 2 divisors, whose sum is σ = 2220001213322. Its totient is φ = 2220001213320.

The previous prime is 2220001213307. The next prime is 2220001213349. The reversal of 2220001213321 is 1233121000222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335263447296 + 884737766025 = 1155536^2 + 940605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220001213321 - 2¹¹ = 2220001211273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220001213301) 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, 1110000606660 + 1110000606661.

It is an arithmetic number, because the mean of its divisors is an integer number (1110000606661).

Almost surely, 2^{2220001213321} is an apocalyptic number.

It is an amenable number.

2220001213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220001213321 is an equidigital number, since it uses as much as digits as its factorization.

2220001213321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2220001213321 its reverse (1233121000222), we get a palindrome (3453122213543).

The spelling of 2220001213321 in words is "two trillion, two hundred twenty billion, one million, two hundred thirteen thousand, three hundred twenty-one".