1002120225325 has 6 divisors (see below), whose sum is σ = 1242629079434. Its totient is φ = 801696180240.

The previous prime is 1002120225289. The next prime is 1002120225343. The reversal of 1002120225325 is 5235220212001.

It can be written as a sum of positive squares in 3 ways, for example, as 5185872169 + 996934353156 = 72013^2 + 998466^2 .

It is not a de Polignac number, because 1002120225325 - 2²¹ = 1002118128173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 40084809013 = 1002120225325 / (1 + 0 + 0 + 2 + 1 + 2 + 0 + 2 + 2 + 5 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002120225325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20042404482 + ... + 20042404531.

Almost surely, 2^{1002120225325} is an apocalyptic number.

It is an amenable number.

1002120225325 is a deficient number, since it is larger than the sum of its proper divisors (240508854109).

1002120225325 is an equidigital number, since it uses as much as digits as its factorization.

1002120225325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084809023 (or 40084809018 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1002120225325 its reverse (5235220212001), we get a palindrome (6237340437326).

The spelling of 1002120225325 in words is "one trillion, two billion, one hundred twenty million, two hundred twenty-five thousand, three hundred twenty-five".