2022220044 has 72 divisors (see below), whose sum is σ = 5598312720. Its totient is φ = 611667072.

The previous prime is 2022220043. The next prime is 2022220069. The reversal of 2022220044 is 4400222202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2022219999 and 2022220026.

It is not an unprimeable number, because it can be changed into a prime (2022220043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9007 + ... + 64230.

Almost surely, 2^2022220044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022220044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2799156360).

2022220044 is an abundant number, since it is smaller than the sum of its proper divisors (3576092676).

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

2022220044 is a wasteful number, since it uses less digits than its factorization.

2022220044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73319 (or 73314 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2022220044 is about 44969.1009916809. The cubic root of 2022220044 is about 1264.5697931455.

Adding to 2022220044 its reverse (4400222202), we get a palindrome (6422442246).

The spelling of 2022220044 in words is "two billion, twenty-two million, two hundred twenty thousand, forty-four".