122201122120 has 128 divisors (see below), whose sum is σ = 345498255360. Its totient is φ = 37788629760.

The previous prime is 122201122103. The next prime is 122201122129. The reversal of 122201122120 is 21221102221.

It is a happy number.

It is a super-3 number, since 3×122201122120³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 122201122094 and 122201122103.

It is not an unprimeable number, because it can be changed into a prime (122201122129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234957 + ... + 547363.

It is an arithmetic number, because the mean of its divisors is an integer number (2699205120).

Almost surely, 2^122201122120 is an apocalyptic number.

122201122120 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 122201122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172749127680).

122201122120 is an abundant number, since it is smaller than the sum of its proper divisors (223297133240).

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

122201122120 is a wasteful number, since it uses less digits than its factorization.

122201122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312563 (or 312559 counting only the distinct ones).

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

Adding to 122201122120 its reverse (21221102221), we get a palindrome (143422224341).

The spelling of 122201122120 in words is "one hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty".