122201021200 has 60 divisors (see below), whose sum is σ = 293938686720. Its totient is φ = 48822014080.

The previous prime is 122201021197. The next prime is 122201021207. The reversal of 122201021200 is 2120102221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122201021207) 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, 153537 + ... + 517663.

It is an arithmetic number, because the mean of its divisors is an integer number (4898978112).

Almost surely, 2^122201021200 is an apocalyptic number.

122201021200 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 122201021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146969343360).

122201021200 is an abundant number, since it is smaller than the sum of its proper divisors (171737665520).

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

122201021200 is a wasteful number, since it uses less digits than its factorization.

122201021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364984 (or 364973 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122201021200 its reverse (2120102221), we get a palindrome (124321123421).

The spelling of 122201021200 in words is "one hundred twenty-two billion, two hundred one million, twenty-one thousand, two hundred".