22020021120 has 256 divisors, whose sum is σ = 78231225600. Its totient is φ = 5235572736.

The previous prime is 22020021109. The next prime is 22020021131. The reversal of 22020021120 is 2112002022.

It is an interprime number because it is at equal distance from previous prime (22020021109) and next prime (22020021131).

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 = 22020021096 and 22020021105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602407 + ... + 637913.

It is an arithmetic number, because the mean of its divisors is an integer number (305590725).

Almost surely, 2^22020021120 is an apocalyptic number.

22020021120 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 22020021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39115612800).

22020021120 is an abundant number, since it is smaller than the sum of its proper divisors (56211204480).

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

22020021120 is a wasteful number, since it uses less digits than its factorization.

22020021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35565 (or 35553 counting only the distinct ones).

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

Adding to 22020021120 its reverse (2112002022), we get a palindrome (24132023142).

The spelling of 22020021120 in words is "twenty-two billion, twenty million, twenty-one thousand, one hundred twenty".