20221020002011 has 4 divisors (see below), whose sum is σ = 20222018049024. Its totient is φ = 20220021955000.

The previous prime is 20221020001981. The next prime is 20221020002021. The reversal of 20221020002011 is 11020002012202.

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 20221020002011 - 2¹¹ = 20221019999963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221020001982 and 20221020002000.

It is not an unprimeable number, because it can be changed into a prime (20221020002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498993115 + ... + 499033636.

It is an arithmetic number, because the mean of its divisors is an integer number (5055504512256).

Almost surely, 2^{20221020002011} is an apocalyptic number.

20221020002011 is a deficient number, since it is larger than the sum of its proper divisors (998047013).

20221020002011 is an equidigital number, since it uses as much as digits as its factorization.

20221020002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998047012.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20221020002011 its reverse (11020002012202), we get a palindrome (31241022014213).

The spelling of 20221020002011 in words is "twenty trillion, two hundred twenty-one billion, twenty million, two thousand, eleven".