20211020022 has 16 divisors (see below), whose sum is σ = 40475166192. Its totient is φ = 6728152320.

The previous prime is 20211020021. The next prime is 20211020033. The reversal of 20211020022 is 22002011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211020021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2208643 + ... + 2217774.

It is an arithmetic number, because the mean of its divisors is an integer number (2529697887).

Almost surely, 2^20211020022 is an apocalyptic number.

20211020022 is an abundant number, since it is smaller than the sum of its proper divisors (20264146170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20211020022 is a wasteful number, since it uses less digits than its factorization.

20211020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427183.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20211020022 its reverse (22002011202), we get a palindrome (42213031224).

The spelling of 20211020022 in words is "twenty billion, two hundred eleven million, twenty thousand, twenty-two".