120001100002200 has 72 divisors (see below), whose sum is σ = 403003694180100. Its totient is φ = 32000293333440.

The previous prime is 120001100002183. The next prime is 120001100002219. The reversal of 120001100002200 is 2200001100021.

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 33333637090 + ... + 33333640689.

Almost surely, 2^{120001100002200} is an apocalyptic number.

120001100002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001100002200 is an abundant number, since it is smaller than the sum of its proper divisors (283002594177900).

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

120001100002200 is a wasteful number, since it uses less digits than its factorization.

120001100002200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66667277801 (or 66667277789 counting only the distinct ones).

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

Adding to 120001100002200 its reverse (2200001100021), we get a palindrome (122201101102221).

The spelling of 120001100002200 in words is "one hundred twenty trillion, one billion, one hundred million, two thousand, two hundred".