2221303232117 has 2 divisors, whose sum is σ = 2221303232118. Its totient is φ = 2221303232116.

The previous prime is 2221303232111. The next prime is 2221303232147. The reversal of 2221303232117 is 7112323031222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1544318202436 + 676985029681 = 1242706^2 + 822791^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221303232117 - 2⁶ = 2221303232053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221303232117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221303232111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110651616058 + 1110651616059.

It is an arithmetic number, because the mean of its divisors is an integer number (1110651616059).

Almost surely, 2^{2221303232117} is an apocalyptic number.

It is an amenable number.

2221303232117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221303232117 is an equidigital number, since it uses as much as digits as its factorization.

2221303232117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 2221303232117 its reverse (7112323031222), we get a palindrome (9333626263339).

The spelling of 2221303232117 in words is "two trillion, two hundred twenty-one billion, three hundred three million, two hundred thirty-two thousand, one hundred seventeen".