1002444221325 has 96 divisors (see below), whose sum is σ = 1775736722560. Its totient is φ = 497483596800.

The previous prime is 1002444221309. The next prime is 1002444221347. The reversal of 1002444221325 is 5231224442001.

It is a happy number.

It is not a de Polignac number, because 1002444221325 - 2⁴ = 1002444221309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002444221292 and 1002444221301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63708159 + ... + 63723891.

Almost surely, 2^{1002444221325} is an apocalyptic number.

1002444221325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002444221325 is a deficient number, since it is larger than the sum of its proper divisors (773292501235).

1002444221325 is a wasteful number, since it uses less digits than its factorization.

1002444221325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559 (or 16554 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1002444221325 its reverse (5231224442001), we get a palindrome (6233668663326).

The spelling of 1002444221325 in words is "one trillion, two billion, four hundred forty-four million, two hundred twenty-one thousand, three hundred twenty-five".