20020221120 has 56 divisors (see below), whose sum is σ = 63564205104. Its totient is φ = 5338725376.

The previous prime is 20020221103. The next prime is 20020221121. The reversal of 20020221120 is 2112202002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20020221096 and 20020221105.

It is not an unprimeable number, because it can be changed into a prime (20020221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10426239 + ... + 10428158.

Almost surely, 2^20020221120 is an apocalyptic number.

20020221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020221120 is an abundant number, since it is smaller than the sum of its proper divisors (43543983984).

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

20020221120 is a wasteful number, since it uses less digits than its factorization.

20020221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20854417 (or 20854407 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020221120 its reverse (2112202002), we get a palindrome (22132423122).

The spelling of 20020221120 in words is "twenty billion, twenty million, two hundred twenty-one thousand, one hundred twenty".