222404221100 has 18 divisors (see below), whose sum is σ = 482617160004. Its totient is φ = 88961688400.

The previous prime is 222404221087. The next prime is 222404221147. The reversal of 222404221100 is 1122404222.

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 5 ways as a sum of consecutive naturals, for example, 1112021006 + ... + 1112021205.

Almost surely, 2^222404221100 is an apocalyptic number.

222404221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222404221100 is an abundant number, since it is smaller than the sum of its proper divisors (260212938904).

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

222404221100 is a wasteful number, since it uses less digits than its factorization.

222404221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224042225 (or 2224042218 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222404221100 its reverse (1122404222), we get a palindrome (223526625322).

The spelling of 222404221100 in words is "two hundred twenty-two billion, four hundred four million, two hundred twenty-one thousand, one hundred".