22220201100 has 72 divisors (see below), whose sum is σ = 67085706240. Its totient is φ = 5667759680.

The previous prime is 22220201093. The next prime is 22220201317. The reversal of 22220201100 is 110202222.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 23 ways as a sum of consecutive naturals, for example, 1603260 + ... + 1617059.

It is an arithmetic number, because the mean of its divisors is an integer number (931745920).

Almost surely, 2^22220201100 is an apocalyptic number.

22220201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220201100 is an abundant number, since it is smaller than the sum of its proper divisors (44865505140).

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

22220201100 is a wasteful number, since it uses less digits than its factorization.

22220201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220359 (or 3220352 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22220201100 its reverse (110202222), we get a palindrome (22330403322).

The spelling of 22220201100 in words is "twenty-two billion, two hundred twenty million, two hundred one thousand, one hundred".