210120011200000 has 720 divisors, whose sum is σ = 579772854006192. Its totient is φ = 75443148800000.

The previous prime is 210120011199997. The next prime is 210120011200069. The reversal of 210120011200000 is 2110021012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 210120011200000.

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 71 ways as a sum of consecutive naturals, for example, 121246399134 + ... + 121246400866.

Almost surely, 2^{210120011200000} is an apocalyptic number.

210120011200000 is a gapful number since it is divisible by the number (20) 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 210120011200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289886427003096).

210120011200000 is an abundant number, since it is smaller than the sum of its proper divisors (369652842806192).

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

210120011200000 is an frugal number, since it uses more digits than its factorization.

210120011200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210120011200000 its reverse (2110021012), we get a palindrome (210122121221012).

The spelling of 210120011200000 in words is "two hundred ten trillion, one hundred twenty billion, eleven million, two hundred thousand".