21010200002 has 32 divisors (see below), whose sum is σ = 34672397760. Its totient is φ = 9469140480.

The previous prime is 21010199983. The next prime is 21010200037. The reversal of 21010200002 is 20000201012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2616698 + ... + 2624714.

It is an arithmetic number, because the mean of its divisors is an integer number (1083512430).

Almost surely, 2^21010200002 is an apocalyptic number.

21010200002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21010200002 is a deficient number, since it is larger than the sum of its proper divisors (13662197758).

21010200002 is a wasteful number, since it uses less digits than its factorization.

21010200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9026.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 21010200002 its reverse (20000201012), we get a palindrome (41010401014).

The spelling of 21010200002 in words is "twenty-one billion, ten million, two hundred thousand, two".