2221763253329 has 2 divisors, whose sum is σ = 2221763253330. Its totient is φ = 2221763253328.

The previous prime is 2221763253323. The next prime is 2221763253373. The reversal of 2221763253329 is 9233523671222.

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., 1342759500625 + 879003752704 = 1158775^2 + 937552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221763253329 - 2²⁴ = 2221746476113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221763253323) 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, 1110881626664 + 1110881626665.

It is an arithmetic number, because the mean of its divisors is an integer number (1110881626665).

Almost surely, 2^{2221763253329} is an apocalyptic number.

It is an amenable number.

2221763253329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221763253329 is an equidigital number, since it uses as much as digits as its factorization.

2221763253329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 47.

The spelling of 2221763253329 in words is "two trillion, two hundred twenty-one billion, seven hundred sixty-three million, two hundred fifty-three thousand, three hundred twenty-nine".