122001221222200 has 96 divisors (see below), whose sum is σ = 285597674775360. Its totient is φ = 48467029363200.

The previous prime is 122001221222131. The next prime is 122001221222201. The reversal of 122001221222200 is 2222122100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001221222201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13631014 + ... + 20731786.

It is an arithmetic number, because the mean of its divisors is an integer number (2974975778910).

Almost surely, 2^{122001221222200} is an apocalyptic number.

122001221222200 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 122001221222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142798837387680).

122001221222200 is an abundant number, since it is smaller than the sum of its proper divisors (163596453553160).

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

122001221222200 is a wasteful number, since it uses less digits than its factorization.

122001221222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7101377 (or 7101368 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122001221222200 its reverse (2222122100221), we get a palindrome (124223343322421).

The spelling of 122001221222200 in words is "one hundred twenty-two trillion, one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred".