2002100021002 has 8 divisors (see below), whose sum is σ = 3003294413700. Its totient is φ = 1001001883104.

The previous prime is 2002100020997. The next prime is 2002100021003. The reversal of 2002100021002 is 2001200012002.

It can be written as a sum of positive squares in 2 ways, for example, as 1732748362921 + 269351658081 = 1316339^2 + 518991^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2002100021002.

It is not an unprimeable number, because it can be changed into a prime (2002100021003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24011677 + ... + 24094912.

Almost surely, 2^{2002100021002} is an apocalyptic number.

2002100021002 is a deficient number, since it is larger than the sum of its proper divisors (1001194392698).

2002100021002 is a wasteful number, since it uses less digits than its factorization.

2002100021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48127400.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2002100021002 its reverse (2001200012002), we get a palindrome (4003300033004).

The spelling of 2002100021002 in words is "two trillion, two billion, one hundred million, twenty-one thousand, two".