1200101022200 has 96 divisors (see below), whose sum is σ = 2880792760320. Its totient is φ = 464466480000.

The previous prime is 1200101022191. The next prime is 1200101022203. The reversal of 1200101022200 is 22201010021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200101022203) 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, 39112865 + ... + 39143535.

It is an arithmetic number, because the mean of its divisors is an integer number (30008257920).

Almost surely, 2^{1200101022200} is an apocalyptic number.

1200101022200 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 1200101022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440396380160).

1200101022200 is an abundant number, since it is smaller than the sum of its proper divisors (1680691738120).

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

1200101022200 is a wasteful number, since it uses less digits than its factorization.

1200101022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37029 (or 37020 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200101022200 its reverse (22201010021), we get a palindrome (1222302032221).

The spelling of 1200101022200 in words is "one trillion, two hundred billion, one hundred one million, twenty-two thousand, two hundred".