22002021120 has 144 divisors (see below), whose sum is σ = 70994579040. Its totient is φ = 5806620672.

The previous prime is 22002021113. The next prime is 22002021143. The reversal of 22002021120 is 2112020022.

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 = 22002021096 and 22002021105.

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, 342946 + ... + 402014.

It is an arithmetic number, because the mean of its divisors is an integer number (493017910).

Almost surely, 2^22002021120 is an apocalyptic number.

22002021120 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 22002021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35497289520).

22002021120 is an abundant number, since it is smaller than the sum of its proper divisors (48992557920).

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

22002021120 is an equidigital number, since it uses as much as digits as its factorization.

22002021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59190 (or 59176 counting only the distinct ones).

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

Adding to 22002021120 its reverse (2112020022), we get a palindrome (24114041142).

The spelling of 22002021120 in words is "twenty-two billion, two million, twenty-one thousand, one hundred twenty".