20201021022 has 64 divisors (see below), whose sum is σ = 49743074304. Its totient is φ = 5325868800.

The previous prime is 20201021021. The next prime is 20201021039. The reversal of 20201021022 is 22012010202.

It is a junction number, because it is equal to n+sod(n) for n = 20201020989 and 20201021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201021021) 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 31 ways as a sum of consecutive naturals, for example, 2289343 + ... + 2298149.

It is an arithmetic number, because the mean of its divisors is an integer number (777235536).

Almost surely, 2^20201021022 is an apocalyptic number.

20201021022 is an abundant number, since it is smaller than the sum of its proper divisors (29542053282).

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

20201021022 is a wasteful number, since it uses less digits than its factorization.

20201021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13033.

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

Adding to 20201021022 its reverse (22012010202), we get a palindrome (42213031224).

The spelling of 20201021022 in words is "twenty billion, two hundred one million, twenty-one thousand, twenty-two".