20120222020 has 96 divisors (see below), whose sum is σ = 44765715456. Its totient is φ = 7584192000.

The previous prime is 20120222009. The next prime is 20120222027. The reversal of 20120222020 is 2022202102.

It is not an unprimeable number, because it can be changed into a prime (20120222027) 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, 10583070 + ... + 10584970.

It is an arithmetic number, because the mean of its divisors is an integer number (466309536).

Almost surely, 2^20120222020 is an apocalyptic number.

20120222020 is a gapful number since it is divisible by the number (20) 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 20120222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22382857728).

20120222020 is an abundant number, since it is smaller than the sum of its proper divisors (24645493436).

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

20120222020 is a wasteful number, since it uses less digits than its factorization.

20120222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20120222020 its reverse (2022202102), we get a palindrome (22142424122).

The spelling of 20120222020 in words is "twenty billion, one hundred twenty million, two hundred twenty-two thousand, twenty".