1002100204225 has 12 divisors (see below), whose sum is σ = 1242616739760. Its totient is φ = 801672107600.

The previous prime is 1002100204223. The next prime is 1002100204241. The reversal of 1002100204225 is 5224020012001.

It is not a de Polignac number, because 1002100204225 - 2¹ = 1002100204223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002100204223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4377870 + ... + 4601080.

It is an arithmetic number, because the mean of its divisors is an integer number (103551394980).

Almost surely, 2^{1002100204225} is an apocalyptic number.

It is an amenable number.

1002100204225 is a deficient number, since it is larger than the sum of its proper divisors (240516535535).

1002100204225 is a wasteful number, since it uses less digits than its factorization.

1002100204225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402800 (or 402795 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 1002100204225 its reverse (5224020012001), we get a palindrome (6226120216226).

The spelling of 1002100204225 in words is "one trillion, two billion, one hundred million, two hundred four thousand, two hundred twenty-five".