20220000120 has 192 divisors, whose sum is σ = 68932918080. Its totient is φ = 5130436608.

The previous prime is 20220000109. The next prime is 20220000137. The reversal of 20220000120 is 2100002202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1591714 + ... + 1604366.

It is an arithmetic number, because the mean of its divisors is an integer number (359025615).

Almost surely, 2^20220000120 is an apocalyptic number.

20220000120 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 20220000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34466459040).

20220000120 is an abundant number, since it is smaller than the sum of its proper divisors (48712917960).

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

20220000120 is a wasteful number, since it uses less digits than its factorization.

20220000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886 (or 12879 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20220000120 its reverse (2100002202), we get a palindrome (22320002322).

The spelling of 20220000120 in words is "twenty billion, two hundred twenty million, one hundred twenty", and thus it is an aban number.