21200202011011 has 8 divisors (see below), whose sum is σ = 21250711599104. Its totient is φ = 21149748829440.

The previous prime is 21200202010943. The next prime is 21200202011041. The reversal of 21200202011011 is 11011020200212.

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 21200202011011 - 2²¹ = 21200199913859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21200202010982 and 21200202011000.

It is not an unprimeable number, because it can be changed into a prime (21200202011041) 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, 13348995 + ... + 14852476.

It is an arithmetic number, because the mean of its divisors is an integer number (2656338949888).

Almost surely, 2^{21200202011011} is an apocalyptic number.

21200202011011 is a deficient number, since it is larger than the sum of its proper divisors (50509588093).

21200202011011 is a wasteful number, since it uses less digits than its factorization.

21200202011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28203261.

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

Adding to 21200202011011 its reverse (11011020200212), we get a palindrome (32211222211223).

The spelling of 21200202011011 in words is "twenty-one trillion, two hundred billion, two hundred two million, eleven thousand, eleven".