21002200102011 has 8 divisors (see below), whose sum is σ = 28005748157200. Its totient is φ = 14000059390752.

The previous prime is 21002200101983. The next prime is 21002200102027. The reversal of 21002200102011 is 11020100220012.

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

It is not a de Polignac number, because 21002200102011 - 2¹⁸ = 21002199839867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21002200102061) 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, 351801160 + ... + 351860853.

It is an arithmetic number, because the mean of its divisors is an integer number (3500718519650).

Almost surely, 2^{21002200102011} is an apocalyptic number.

21002200102011 is a deficient number, since it is larger than the sum of its proper divisors (7003548055189).

21002200102011 is an equidigital number, since it uses as much as digits as its factorization.

21002200102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703671965.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21002200102011 its reverse (11020100220012), we get a palindrome (32022300322023).

The spelling of 21002200102011 in words is "twenty-one trillion, two billion, two hundred million, one hundred two thousand, eleven".