1002000332021 has 32 divisors (see below), whose sum is σ = 1128336556032. Its totient is φ = 882870943680.

The previous prime is 1002000331993. The next prime is 1002000332057. The reversal of 1002000332021 is 1202330002001.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002000332021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002000331987 and 1002000332005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002000337021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549642716 + ... + 549644538.

It is an arithmetic number, because the mean of its divisors is an integer number (35260517376).

Almost surely, 2^{1002000332021} is an apocalyptic number.

It is an amenable number.

1002000332021 is a deficient number, since it is larger than the sum of its proper divisors (126336224011).

1002000332021 is a wasteful number, since it uses less digits than its factorization.

1002000332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1002000332021 its reverse (1202330002001), we get a palindrome (2204330334022).

The spelling of 1002000332021 in words is "one trillion, two billion, three hundred thirty-two thousand, twenty-one".