21200201002 has 8 divisors (see below), whose sum is σ = 31801299876. Its totient is φ = 10599767712.

The previous prime is 21200200997. The next prime is 21200201063. The reversal of 21200201002 is 20010200212.

It can be written as a sum of positive squares in 2 ways, for example, as 20755876761 + 444324241 = 144069^2 + 21079^2 .

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 21200201002.

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, 77203 + ... + 219910.

Almost surely, 2^21200201002 is an apocalyptic number.

21200201002 is a deficient number, since it is larger than the sum of its proper divisors (10601098874).

21200201002 is a wasteful number, since it uses less digits than its factorization.

21200201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332792.

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

Adding to 21200201002 its reverse (20010200212), we get a palindrome (41210401214).

The spelling of 21200201002 in words is "twenty-one billion, two hundred million, two hundred one thousand, two".