43244221020 has 384 divisors, whose sum is σ = 162957699072. Its totient is φ = 8275046400.

The previous prime is 43244221003. The next prime is 43244221021. The reversal of 43244221020 is 2012244234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43244221021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 49308822 + ... + 49309698.

It is an arithmetic number, because the mean of its divisors is an integer number (424369008).

Almost surely, 2^43244221020 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 43244221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81478849536).

43244221020 is an abundant number, since it is smaller than the sum of its proper divisors (119713478052).

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

43244221020 is a wasteful number, since it uses less digits than its factorization.

43244221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 43244221020 its reverse (2012244234), we get a palindrome (45256465254).

The spelling of 43244221020 in words is "forty-three billion, two hundred forty-four million, two hundred twenty-one thousand, twenty".