21011022200011 has 8 divisors (see below), whose sum is σ = 21308360601600. Its totient is φ = 20713722923880.

The previous prime is 21011022199997. The next prime is 21011022200029. The reversal of 21011022200011 is 11000222011012.

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 21011022200011 - 2⁹ = 21011022199499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21011022199964 and 21011022200000.

It is not an unprimeable number, because it can be changed into a prime (21011022200611) 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, 8698891 + ... + 10848628.

It is an arithmetic number, because the mean of its divisors is an integer number (2663545075200).

Almost surely, 2^{21011022200011} is an apocalyptic number.

21011022200011 is a deficient number, since it is larger than the sum of its proper divisors (297338401589).

21011022200011 is a wasteful number, since it uses less digits than its factorization.

21011022200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562729.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21011022200011 its reverse (11000222011012), we get a palindrome (32011244211023).

The spelling of 21011022200011 in words is "twenty-one trillion, eleven billion, twenty-two million, two hundred thousand, eleven".