44220001020 has 192 divisors, whose sum is σ = 139336243200. Its totient is φ = 10396818432.

The previous prime is 44220001013. The next prime is 44220001099. The reversal of 44220001020 is 2010002244.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17346706 + ... + 17349254.

It is an arithmetic number, because the mean of its divisors is an integer number (725709600).

Almost surely, 2^44220001020 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 44220001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69668121600).

44220001020 is an abundant number, since it is smaller than the sum of its proper divisors (95116242180).

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

44220001020 is a wasteful number, since it uses less digits than its factorization.

44220001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564 (or 3562 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 44220001020 its reverse (2010002244), we get a palindrome (46230003264).

The spelling of 44220001020 in words is "forty-four billion, two hundred twenty million, one thousand, twenty".