21002200113 has 8 divisors (see below), whose sum is σ = 28968552000. Its totient is φ = 13518657488.

The previous prime is 21002200099. The next prime is 21002200117. The reversal of 21002200113 is 31100220012.

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

It is a cyclic number.

It is not a de Polignac number, because 21002200113 - 2⁴ = 21002200097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21002200117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120702213 + ... + 120702386.

It is an arithmetic number, because the mean of its divisors is an integer number (3621069000).

Almost surely, 2^21002200113 is an apocalyptic number.

It is an amenable number.

21002200113 is a deficient number, since it is larger than the sum of its proper divisors (7966351887).

21002200113 is a wasteful number, since it uses less digits than its factorization.

21002200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241404631.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21002200113 its reverse (31100220012), we get a palindrome (52102420125).

The spelling of 21002200113 in words is "twenty-one billion, two million, two hundred thousand, one hundred thirteen".