222223002100 has 144 divisors (see below), whose sum is σ = 557732177856. Its totient is φ = 75955968000.

The previous prime is 222223002073. The next prime is 222223002179. The reversal of 222223002100 is 1200322222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15158374 + ... + 15173026.

It is an arithmetic number, because the mean of its divisors is an integer number (3873140124).

Almost surely, 2^222223002100 is an apocalyptic number.

222223002100 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 222223002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278866088928).

222223002100 is an abundant number, since it is smaller than the sum of its proper divisors (335509175756).

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

222223002100 is a wasteful number, since it uses less digits than its factorization.

222223002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15506 (or 15499 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 222223002100 its reverse (1200322222), we get a palindrome (223423324322).

The spelling of 222223002100 in words is "two hundred twenty-two billion, two hundred twenty-three million, two thousand, one hundred".