20111200012000 has 96 divisors (see below), whose sum is σ = 50345543836224. Its totient is φ = 7892697280000.

The previous prime is 20111200011979. The next prime is 20111200012003. The reversal of 20111200012000 is 21000211102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111200012003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47220076 + ... + 47644075.

It is an arithmetic number, because the mean of its divisors is an integer number (524432748294).

Almost surely, 2^{20111200012000} is an apocalyptic number.

20111200012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111200012000 is an abundant number, since it is smaller than the sum of its proper divisors (30234343824224).

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

20111200012000 is an equidigital number, since it uses as much as digits as its factorization.

20111200012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94864229 (or 94864211 counting only the distinct ones).

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

Adding to 20111200012000 its reverse (21000211102), we get a palindrome (20132200223102).

The spelling of 20111200012000 in words is "twenty trillion, one hundred eleven billion, two hundred million, twelve thousand".