122131111102200 has 288 divisors, whose sum is σ = 421364811684960. Its totient is φ = 31678856524800.

The previous prime is 122131111102141. The next prime is 122131111102201. The reversal of 122131111102200 is 2201111131221.

It is a happy number.

122131111102200 is a `hidden beast` number, since 1 + 2 + 21 + 311 + 1 + 110 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131111102201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 230237677 + ... + 230767523.

It is an arithmetic number, because the mean of its divisors is an integer number (1463072262795).

Almost surely, 2^{122131111102200} is an apocalyptic number.

122131111102200 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 122131111102200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210682405842480).

122131111102200 is an abundant number, since it is smaller than the sum of its proper divisors (299233700582760).

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

122131111102200 is a wasteful number, since it uses less digits than its factorization.

122131111102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533367 (or 533355 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 122131111102200 its reverse (2201111131221), we get a palindrome (124332222233421).

The spelling of 122131111102200 in words is "one hundred twenty-two trillion, one hundred thirty-one billion, one hundred eleven million, one hundred two thousand, two hundred".