4022000020 has 12 divisors (see below), whose sum is σ = 8446200084. Its totient is φ = 1608800000.

The previous prime is 4021999967. The next prime is 4022000023. The reversal of 4022000020 is 200002204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1899739396 + 2122260624 = 43586^2 + 46068^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 4021999970 and 4022000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022000023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100549981 + ... + 100550020.

It is an arithmetic number, because the mean of its divisors is an integer number (703850007).

Almost surely, 2^4022000020 is an apocalyptic number.

It is an amenable number.

4022000020 is an abundant number, since it is smaller than the sum of its proper divisors (4424200064).

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

4022000020 is a wasteful number, since it uses less digits than its factorization.

4022000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201100010 (or 201100008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4022000020 is about 63419.2401405126. The cubic root of 4022000020 is about 1590.3059706780.

Adding to 4022000020 its reverse (200002204), we get a palindrome (4222002224).

The spelling of 4022000020 in words is "four billion, twenty-two million, twenty", and thus it is an aban number.