222321022100 has 36 divisors (see below), whose sum is σ = 487410212604. Its totient is φ = 88011617280.

The previous prime is 222321022097. The next prime is 222321022117. The reversal of 222321022100 is 1220123222.

222321022100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3298894096 + 219022128004 = 57436^2 + 467998^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11450147 + ... + 11469546.

Almost surely, 2^222321022100 is an apocalyptic number.

222321022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222321022100 is an abundant number, since it is smaller than the sum of its proper divisors (265089190504).

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

222321022100 is a wasteful number, since it uses less digits than its factorization.

222321022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22919804 (or 22919797 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 222321022100 its reverse (1220123222), we get a palindrome (223541145322).

The spelling of 222321022100 in words is "two hundred twenty-two billion, three hundred twenty-one million, twenty-two thousand, one hundred".