20021022002022 has 16 divisors (see below), whose sum is σ = 40151150395392. Its totient is φ = 6655489602120.

The previous prime is 20021022001973. The next prime is 20021022002027. The reversal of 20021022002022 is 22020022012002.

It is a junction number, because it is equal to n+sod(n) for n = 20021022001992 and 20021022002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021022002027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4546097254 + ... + 4546101657.

It is an arithmetic number, because the mean of its divisors is an integer number (2509446899712).

Almost surely, 2^{20021022002022} is an apocalyptic number.

20021022002022 is an abundant number, since it is smaller than the sum of its proper divisors (20130128393370).

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

20021022002022 is a wasteful number, since it uses less digits than its factorization.

20021022002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9092199283.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20021022002022 its reverse (22020022012002), we get a palindrome (42041044014024).

The spelling of 20021022002022 in words is "twenty trillion, twenty-one billion, twenty-two million, two thousand, twenty-two".