20001022001011 has 16 divisors (see below), whose sum is σ = 20364722394784. Its totient is φ = 19639307153664.

The previous prime is 20001022000937. The next prime is 20001022001017. The reversal of 20001022001011 is 11010022010002.

It is a cyclic number.

It is not a de Polignac number, because 20001022001011 - 2²⁹ = 20000485130099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001022001017) 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, 38389591 + ... + 38907103.

It is an arithmetic number, because the mean of its divisors is an integer number (1272795149674).

Almost surely, 2^{20001022001011} is an apocalyptic number.

20001022001011 is a deficient number, since it is larger than the sum of its proper divisors (363700393773).

20001022001011 is a wasteful number, since it uses less digits than its factorization.

20001022001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519430.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20001022001011 its reverse (11010022010002), we get a palindrome (31011044011013).

The spelling of 20001022001011 in words is "twenty trillion, one billion, twenty-two million, one thousand, eleven".