20021802002 has 8 divisors (see below), whose sum is σ = 30035070000. Its totient is φ = 10010112004.

The previous prime is 20021801993. The next prime is 20021802019. The reversal of 20021802002 is 20020812002.

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

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, 362252 + ... + 413847.

It is an arithmetic number, because the mean of its divisors is an integer number (3754383750).

Almost surely, 2^20021802002 is an apocalyptic number.

20021802002 is a deficient number, since it is larger than the sum of its proper divisors (10013267998).

20021802002 is a wasteful number, since it uses less digits than its factorization.

20021802002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789000.

The product of its (nonzero) digits is 128, while the sum is 17.

The spelling of 20021802002 in words is "twenty billion, twenty-one million, eight hundred two thousand, two".