20120100011200 has 168 divisors, whose sum is σ = 57081312356832. Its totient is φ = 6837272494080.

The previous prime is 20120100011197. The next prime is 20120100011201. The reversal of 20120100011200 is 211000102102.

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

It is not an unprimeable number, because it can be changed into a prime (20120100011201) 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, 6683239 + ... + 9214438.

Almost surely, 2^{20120100011200} is an apocalyptic number.

20120100011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120100011200 is an abundant number, since it is smaller than the sum of its proper divisors (36961212345632).

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

20120100011200 is a wasteful number, since it uses less digits than its factorization.

20120100011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15897819 (or 15897804 counting only the distinct ones).

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

Adding to 20120100011200 its reverse (211000102102), we get a palindrome (20331100113302).

The spelling of 20120100011200 in words is "twenty trillion, one hundred twenty billion, one hundred million, eleven thousand, two hundred".