22222320221000 has 32 divisors (see below), whose sum is σ = 52000229319480. Its totient is φ = 8888928088000.

The previous prime is 22222320220987. The next prime is 22222320221099. The reversal of 22222320221000 is 12202322222.

It can be written as a sum of positive squares in 4 ways, for example, as 13966708686436 + 8255611534564 = 3737206^2 + 2873258^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11111159111 + ... + 11111161110.

Almost surely, 2^{22222320221000} is an apocalyptic number.

22222320221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222320221000 is an abundant number, since it is smaller than the sum of its proper divisors (29777909098480).

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

22222320221000 is a wasteful number, since it uses less digits than its factorization.

22222320221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222320242 (or 22222320228 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22222320221000 its reverse (12202322222), we get a palindrome (22234522543222).

The spelling of 22222320221000 in words is "twenty-two trillion, two hundred twenty-two billion, three hundred twenty million, two hundred twenty-one thousand".