1003225415021 has 2 divisors, whose sum is σ = 1003225415022. Its totient is φ = 1003225415020.

The previous prime is 1003225415011. The next prime is 1003225415051. The reversal of 1003225415021 is 1205145223001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983657322025 + 19568092996 = 991795^2 + 139886^2 .

It is an emirp because it is prime and its reverse (1205145223001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1003225415021 - 2³⁰ = 1002151673197 is a prime.

It is a super-2 number, since 2×1003225415021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003225415011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501612707510 + 501612707511.

It is an arithmetic number, because the mean of its divisors is an integer number (501612707511).

Almost surely, 2^{1003225415021} is an apocalyptic number.

It is an amenable number.

1003225415021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003225415021 is an equidigital number, since it uses as much as digits as its factorization.

1003225415021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 1003225415021 in words is "one trillion, three billion, two hundred twenty-five million, four hundred fifteen thousand, twenty-one".