1002003133221 has 12 divisors (see below), whose sum is σ = 1480996879648. Its totient is φ = 652467156264.

The previous prime is 1002003133217. The next prime is 1002003133279. The reversal of 1002003133221 is 1223313002001.

1002003133221 is a `hidden beast` number, since 10 + 0 + 20 + 0 + 313 + 322 + 1 = 666.

It is not a de Polignac number, because 1002003133221 - 2² = 1002003133217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002003133194 and 1002003133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002003133211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294577305 + ... + 1294578078.

Almost surely, 2^{1002003133221} is an apocalyptic number.

It is an amenable number.

1002003133221 is a deficient number, since it is larger than the sum of its proper divisors (478993746427).

1002003133221 is a wasteful number, since it uses less digits than its factorization.

1002003133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589155432 (or 2589155429 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1002003133221 its reverse (1223313002001), we get a palindrome (2225316135222).

The spelling of 1002003133221 in words is "one trillion, two billion, three million, one hundred thirty-three thousand, two hundred twenty-one".