2020001022 has 48 divisors (see below), whose sum is σ = 4725979440. Its totient is φ = 619871616.

The previous prime is 2020000987. The next prime is 2020001029. The reversal of 2020001022 is 2201000202.

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 = 2020000995 and 2020001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77298 + ... + 100074.

It is an arithmetic number, because the mean of its divisors is an integer number (98457905).

Almost surely, 2^2020001022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020001022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2362989720).

2020001022 is an abundant number, since it is smaller than the sum of its proper divisors (2705978418).

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

2020001022 is a wasteful number, since it uses less digits than its factorization.

2020001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23177 (or 23174 counting only the distinct ones).

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

The square root of 2020001022 is about 44944.4214780878. The cubic root of 2020001022 is about 1264.1070780509.

Adding to 2020001022 its reverse (2201000202), we get a palindrome (4221001224).

The spelling of 2020001022 in words is "two billion, twenty million, one thousand, twenty-two".