20011022210011 has 16 divisors (see below), whose sum is σ = 22954843684800. Its totient is φ = 17088562833408.

The previous prime is 20011022209991. The next prime is 20011022210057. The reversal of 20011022210011 is 11001222011002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011022210011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011022209973 and 20011022210000.

It is not an unprimeable number, because it can be changed into a prime (20011022210071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796756 + ... + 6376273.

It is an arithmetic number, because the mean of its divisors is an integer number (1434677730300).

Almost surely, 2^{20011022210011} is an apocalyptic number.

20011022210011 is a deficient number, since it is larger than the sum of its proper divisors (2943821474789).

20011022210011 is a wasteful number, since it uses less digits than its factorization.

20011022210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174518.

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

Adding to 20011022210011 its reverse (11001222011002), we get a palindrome (31012244221013).

The spelling of 20011022210011 in words is "twenty trillion, eleven billion, twenty-two million, two hundred ten thousand, eleven".