12222220110100 has 288 divisors, whose sum is σ = 36194042932992. Its totient is φ = 3458833920000.

The previous prime is 12222220110017. The next prime is 12222220110173. The reversal of 12222220110100 is 101102222221.

It is a happy number.

It is a super-2 number, since 2×12222220110100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5105280 + ... + 7106920.

It is an arithmetic number, because the mean of its divisors is an integer number (125673760184).

Almost surely, 2^{12222220110100} is an apocalyptic number.

12222220110100 is a gapful number since it is divisible by the number (10) 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 12222220110100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18097021466496).

12222220110100 is an abundant number, since it is smaller than the sum of its proper divisors (23971822822892).

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

12222220110100 is a wasteful number, since it uses less digits than its factorization.

12222220110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001747 (or 2001740 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222220110100 its reverse (101102222221), we get a palindrome (12323322332321).

The spelling of 12222220110100 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty million, one hundred ten thousand, one hundred".