221113102321289 has 2 divisors, whose sum is σ = 221113102321290. Its totient is φ = 221113102321288.

The previous prime is 221113102321253. The next prime is 221113102321327. The reversal of 221113102321289 is 982123201311122.

It is a happy number.

It is an a-pointer prime, because the next prime (221113102321327) can be obtained adding 221113102321289 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202958003946889 + 18155098374400 = 14246333^2 + 4260880^2 .

It is a cyclic number.

It is not a de Polignac number, because 221113102321289 - 2²⁸ = 221112833885833 is a prime.

It is not a weakly prime, because it can be changed into another prime (221113102321229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556551160644 + 110556551160645.

It is an arithmetic number, because the mean of its divisors is an integer number (110556551160645).

Almost surely, 2^{221113102321289} is an apocalyptic number.

It is an amenable number.

221113102321289 is a deficient number, since it is larger than the sum of its proper divisors (1).

221113102321289 is an equidigital number, since it uses as much as digits as its factorization.

221113102321289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 221113102321289 in words is "two hundred twenty-one trillion, one hundred thirteen billion, one hundred two million, three hundred twenty-one thousand, two hundred eighty-nine".