122001001200 has 600 divisors, whose sum is σ = 474692530928. Its totient is φ = 29829980160.

The previous prime is 122001001169. The next prime is 122001001217. The reversal of 122001001200 is 2100100221.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 68654712 + ... + 68656488.

Almost surely, 2^122001001200 is an apocalyptic number.

122001001200 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 122001001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237346265464).

122001001200 is an abundant number, since it is smaller than the sum of its proper divisors (352691529728).

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

122001001200 is a wasteful number, since it uses less digits than its factorization.

122001001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1963 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 122001001200 its reverse (2100100221), we get a palindrome (124101101421).

The spelling of 122001001200 in words is "one hundred twenty-two billion, one million, one thousand, two hundred".