1003320222161 has 2 divisors, whose sum is σ = 1003320222162. Its totient is φ = 1003320222160.

The previous prime is 1003320222097. The next prime is 1003320222181. The reversal of 1003320222161 is 1612220233001.

1003320222161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 901064171536 + 102256050625 = 949244^2 + 319775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003320222161 - 2⁶ = 1003320222097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003320222181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501660111080 + 501660111081.

It is an arithmetic number, because the mean of its divisors is an integer number (501660111081).

Almost surely, 2^{1003320222161} is an apocalyptic number.

It is an amenable number.

1003320222161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003320222161 is an equidigital number, since it uses as much as digits as its factorization.

1003320222161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1003320222161 its reverse (1612220233001), we get a palindrome (2615540455162).

The spelling of 1003320222161 in words is "one trillion, three billion, three hundred twenty million, two hundred twenty-two thousand, one hundred sixty-one".