2020221609952 has 144 divisors (see below), whose sum is σ = 4984126553952. Its totient is φ = 798958218240.

The previous prime is 2020221609937. The next prime is 2020221609953. The reversal of 2020221609952 is 2599061220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221609953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73633677 + ... + 73661107.

It is an arithmetic number, because the mean of its divisors is an integer number (34611989958).

Almost surely, 2^{2020221609952} 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 2020221609952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492063276976).

2020221609952 is an abundant number, since it is smaller than the sum of its proper divisors (2963904944000).

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

2020221609952 is a wasteful number, since it uses less digits than its factorization.

2020221609952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31081 (or 31066 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 2020221609952 in words is "two trillion, twenty billion, two hundred twenty-one million, six hundred nine thousand, nine hundred fifty-two".