1201202120000 has 140 divisors (see below), whose sum is σ = 2979971054016. Its totient is φ = 480258240000.

The previous prime is 1201202119993. The next prime is 1201202120071. The reversal of 1201202120000 is 212021021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106834379 + ... + 106845621.

Almost surely, 2^{1201202120000} is an apocalyptic number.

1201202120000 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 1201202120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489985527008).

1201202120000 is an abundant number, since it is smaller than the sum of its proper divisors (1778768934016).

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

1201202120000 is an equidigital number, since it uses as much as digits as its factorization.

1201202120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13946 (or 13921 counting only the distinct ones).

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

Adding to 1201202120000 its reverse (212021021), we get a palindrome (1201414141021).

The spelling of 1201202120000 in words is "one trillion, two hundred one billion, two hundred two million, one hundred twenty thousand".