222120221200100 has 36 divisors (see below), whose sum is σ = 507369347377200. Its totient is φ = 84171873296160.

The previous prime is 222120221200099. The next prime is 222120221200109. The reversal of 222120221200100 is 1002122021222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222120221200109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58452687890 + ... + 58452691689.

It is an arithmetic number, because the mean of its divisors is an integer number (14093592982700).

Almost surely, 2^{222120221200100} is an apocalyptic number.

222120221200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120221200100 is an abundant number, since it is smaller than the sum of its proper divisors (285249126177100).

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

222120221200100 is a wasteful number, since it uses less digits than its factorization.

222120221200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116905379612 (or 116905379605 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222120221200100 its reverse (1002122021222), we get a palindrome (223122343221322).

The spelling of 222120221200100 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred thousand, one hundred".