122221112200 has 144 divisors (see below), whose sum is σ = 324064414800. Its totient is φ = 42511286400.

The previous prime is 122221112183. The next prime is 122221112207. The reversal of 122221112200 is 2211122221.

It is a happy number.

122221112200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (122221112207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1111291 + ... + 1216309.

It is an arithmetic number, because the mean of its divisors is an integer number (2250447325).

Almost surely, 2^122221112200 is an apocalyptic number.

122221112200 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 122221112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162032207400).

122221112200 is an abundant number, since it is smaller than the sum of its proper divisors (201843302600).

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

122221112200 is a wasteful number, since it uses less digits than its factorization.

122221112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105092 (or 105060 counting only the distinct ones).

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

Adding to 122221112200 its reverse (2211122221), we get a palindrome (124432234421).

The spelling of 122221112200 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred".