2044021122 has 128 divisors (see below), whose sum is σ = 5364817920. Its totient is φ = 568710720.

The previous prime is 2044021103. The next prime is 2044021127. The reversal of 2044021122 is 2211204402.

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 = 2044021095 and 2044021104.

It is not an unprimeable number, because it can be changed into a prime (2044021127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1721413 + ... + 1722599.

It is an arithmetic number, because the mean of its divisors is an integer number (41912640).

Almost surely, 2^2044021122 is an apocalyptic number.

2044021122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2044021122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2682408960).

2044021122 is an abundant number, since it is smaller than the sum of its proper divisors (3320796798).

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

2044021122 is a wasteful number, since it uses less digits than its factorization.

2044021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2044021122 is about 45210.8518167928. The cubic root of 2044021122 is about 1269.0979027910.

Adding to 2044021122 its reverse (2211204402), we get a palindrome (4255225524).

The spelling of 2044021122 in words is "two billion, forty-four million, twenty-one thousand, one hundred twenty-two".