12020052044 has 96 divisors (see below), whose sum is σ = 28278566400. Its totient is φ = 4317442560.

The previous prime is 12020052043. The next prime is 12020052049. The reversal of 12020052044 is 44025002021.

It is a happy number.

It is a super-2 number, since 2×12020052044² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12020052043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4519187 + ... + 4521845.

It is an arithmetic number, because the mean of its divisors is an integer number (294568400).

Almost surely, 2^12020052044 is an apocalyptic number.

12020052044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020052044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14139283200).

12020052044 is an abundant number, since it is smaller than the sum of its proper divisors (16258514356).

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

12020052044 is a wasteful number, since it uses less digits than its factorization.

12020052044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 12020052044 its reverse (44025002021), we get a palindrome (56045054065).

The spelling of 12020052044 in words is "twelve billion, twenty million, fifty-two thousand, forty-four".