22230121100 has 144 divisors (see below), whose sum is σ = 55601441280. Its totient is φ = 7638355200.

The previous prime is 22230121099. The next prime is 22230121103. The reversal of 22230121100 is 112103222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22230121103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1491887 + ... + 1506713.

It is an arithmetic number, because the mean of its divisors is an integer number (386121120).

Almost surely, 2^22230121100 is an apocalyptic number.

22230121100 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 22230121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27800720640).

22230121100 is an abundant number, since it is smaller than the sum of its proper divisors (33371320180).

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

22230121100 is a wasteful number, since it uses less digits than its factorization.

22230121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14928 (or 14921 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22230121100 its reverse (112103222), we get a palindrome (22342224322).

The spelling of 22230121100 in words is "twenty-two billion, two hundred thirty million, one hundred twenty-one thousand, one hundred".