21003332002 has 8 divisors (see below), whose sum is σ = 32038981200. Its totient is φ = 10323671604.

The previous prime is 21003331957. The next prime is 21003332017. The reversal of 21003332002 is 20023330012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21003332002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88997052 + ... + 88997287.

It is an arithmetic number, because the mean of its divisors is an integer number (4004872650).

Almost surely, 2^21003332002 is an apocalyptic number.

21003332002 is a deficient number, since it is larger than the sum of its proper divisors (11035649198).

21003332002 is a wasteful number, since it uses less digits than its factorization.

21003332002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177994400.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21003332002 its reverse (20023330012), we get a palindrome (41026662014).

The spelling of 21003332002 in words is "twenty-one billion, three million, three hundred thirty-two thousand, two".