20221020011 has 4 divisors (see below), whose sum is σ = 20267082000. Its totient is φ = 20174958024.

The previous prime is 20221019993. The next prime is 20221020059. The reversal of 20221020011 is 11002012202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20221020011 - 2⁶ = 20221019947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221019974 and 20221020001.

It is not an unprimeable number, because it can be changed into a prime (20221020811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23030336 + ... + 23031213.

It is an arithmetic number, because the mean of its divisors is an integer number (5066770500).

Almost surely, 2^20221020011 is an apocalyptic number.

20221020011 is a deficient number, since it is larger than the sum of its proper divisors (46061989).

20221020011 is an equidigital number, since it uses as much as digits as its factorization.

20221020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46061988.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221020011 its reverse (11002012202), we get a palindrome (31223032213).

The spelling of 20221020011 in words is "twenty billion, two hundred twenty-one million, twenty thousand, eleven".