20220240020 has 48 divisors (see below), whose sum is σ = 43511115648. Its totient is φ = 7888890240.

The previous prime is 20220240013. The next prime is 20220240037. The reversal of 20220240020 is 2004202202.

It is a junction number, because it is equal to n+sod(n) for n = 20220239977 and 20220240004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609050 + ... + 641390.

It is an arithmetic number, because the mean of its divisors is an integer number (906481576).

Almost surely, 2^20220240020 is an apocalyptic number.

20220240020 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 20220240020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21755557824).

20220240020 is an abundant number, since it is smaller than the sum of its proper divisors (23290875628).

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

20220240020 is a wasteful number, since it uses less digits than its factorization.

20220240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33120 (or 33118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20220240020 its reverse (2004202202), we get a palindrome (22224442222).

The spelling of 20220240020 in words is "twenty billion, two hundred twenty million, two hundred forty thousand, twenty".