20001002022 has 48 divisors (see below), whose sum is σ = 43480610160. Its totient is φ = 6644721600.

The previous prime is 20001001957. The next prime is 20001002029. The reversal of 20001002022 is 22020010002.

20001002022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20001001995 and 20001002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8434497 + ... + 8436867.

It is an arithmetic number, because the mean of its divisors is an integer number (905846045).

Almost surely, 2^20001002022 is an apocalyptic number.

20001002022 is an abundant number, since it is smaller than the sum of its proper divisors (23479608138).

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

20001002022 is a wasteful number, since it uses less digits than its factorization.

20001002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3746 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20001002022 its reverse (22020010002), we get a palindrome (42021012024).

The spelling of 20001002022 in words is "twenty billion, one million, two thousand, twenty-two".