20112243102200 has 96 divisors (see below), whose sum is σ = 46827195762000. Its totient is φ = 8033510016000.

The previous prime is 20112243102199. The next prime is 20112243102209. The reversal of 20112243102200 is 220134221102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112243102209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 476922716 + ... + 476964884.

Almost surely, 2^{20112243102200} is an apocalyptic number.

20112243102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112243102200 is an abundant number, since it is smaller than the sum of its proper divisors (26714952659800).

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

20112243102200 is a wasteful number, since it uses less digits than its factorization.

20112243102200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45505 (or 45496 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20112243102200 its reverse (220134221102), we get a palindrome (20332377323302).

The spelling of 20112243102200 in words is "twenty trillion, one hundred twelve billion, two hundred forty-three million, one hundred two thousand, two hundred".