21200200011011 has 8 divisors (see below), whose sum is σ = 25654023542880. Its totient is φ = 17102682361728.

The previous prime is 21200200010989. The next prime is 21200200011017. The reversal of 21200200011011 is 11011000200212.

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 21200200011011 - 2²² = 21200195816707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21200200010983 and 21200200011001.

It is not an unprimeable number, because it can be changed into a prime (21200200011017) 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, 89076470516 + ... + 89076470753.

It is an arithmetic number, because the mean of its divisors is an integer number (3206752942860).

Almost surely, 2^{21200200011011} is an apocalyptic number.

21200200011011 is a deficient number, since it is larger than the sum of its proper divisors (4453823531869).

21200200011011 is a wasteful number, since it uses less digits than its factorization.

21200200011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178152941293.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21200200011011 its reverse (11011000200212), we get a palindrome (32211200211223).

The spelling of 21200200011011 in words is "twenty-one trillion, two hundred billion, two hundred million, eleven thousand, eleven".