22020221000 has 128 divisors (see below), whose sum is σ = 54385344000. Its totient is φ = 8322048000.

The previous prime is 22020220997. The next prime is 22020221029. The reversal of 22020221000 is 12202022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8187656 + ... + 8190344.

It is an arithmetic number, because the mean of its divisors is an integer number (424885500).

Almost surely, 2^22020221000 is an apocalyptic number.

22020221000 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 22020221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27192672000).

22020221000 is an abundant number, since it is smaller than the sum of its proper divisors (32365123000).

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

22020221000 is a wasteful number, since it uses less digits than its factorization.

22020221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22020221000 its reverse (12202022), we get a palindrome (22032423022).

It can be divided in two parts, 2202022 and 1000, that added together give a palindrome (2203022).

The spelling of 22020221000 in words is "twenty-two billion, twenty million, two hundred twenty-one thousand".