1003220002121 has 2 divisors, whose sum is σ = 1003220002122. Its totient is φ = 1003220002120.

The previous prime is 1003220002097. The next prime is 1003220002129. The reversal of 1003220002121 is 1212000223001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992143492096 + 11076510025 = 996064^2 + 105245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003220002121 - 2¹⁴ = 1003219985737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1003220002096 and 1003220002105.

It is not a weakly prime, because it can be changed into another prime (1003220002129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501610001060 + 501610001061.

It is an arithmetic number, because the mean of its divisors is an integer number (501610001061).

Almost surely, 2^{1003220002121} is an apocalyptic number.

It is an amenable number.

1003220002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003220002121 is an equidigital number, since it uses as much as digits as its factorization.

1003220002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1003220002121 its reverse (1212000223001), we get a palindrome (2215220225122).

The spelling of 1003220002121 in words is "one trillion, three billion, two hundred twenty million, two thousand, one hundred twenty-one".