222244420100 has 72 divisors (see below), whose sum is σ = 492065880768. Its totient is φ = 87107529600.

The previous prime is 222244420093. The next prime is 222244420159. The reversal of 222244420100 is 1024442222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1061282 + ... + 1253318.

It is an arithmetic number, because the mean of its divisors is an integer number (6834248344).

Almost surely, 2^222244420100 is an apocalyptic number.

222244420100 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 222244420100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246032940384).

222244420100 is an abundant number, since it is smaller than the sum of its proper divisors (269821460668).

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

222244420100 is a wasteful number, since it uses less digits than its factorization.

222244420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192285 (or 192278 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 222244420100 its reverse (1024442222), we get a palindrome (223268862322).

The spelling of 222244420100 in words is "two hundred twenty-two billion, two hundred forty-four million, four hundred twenty thousand, one hundred".