20020022221120 has 56 divisors (see below), whose sum is σ = 48094560106344. Its totient is φ = 7937141538816.

The previous prime is 20020022221109. The next prime is 20020022221139. The reversal of 20020022221120 is 2112222002002.

It can be written as a sum of positive squares in 4 ways, for example, as 1581517517056 + 18438504704064 = 1257584^2 + 4294008^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20020022221094 and 20020022221103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276789369 + ... + 276861688.

Almost surely, 2^{20020022221120} is an apocalyptic number.

20020022221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020022221120 is an abundant number, since it is smaller than the sum of its proper divisors (28074537885224).

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

20020022221120 is a wasteful number, since it uses less digits than its factorization.

20020022221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553651187 (or 553651177 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020022221120 its reverse (2112222002002), we get a palindrome (22132244223122).

The spelling of 20020022221120 in words is "twenty trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty".