20112202111200 has 72 divisors (see below), whose sum is σ = 65465217879768. Its totient is φ = 5363253895680.

The previous prime is 20112202111151. The next prime is 20112202111207. The reversal of 20112202111200 is 211120221102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20112202111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112202111207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4190039707 + ... + 4190044506.

It is an arithmetic number, because the mean of its divisors is an integer number (909239137219).

Almost surely, 2^{20112202111200} is an apocalyptic number.

20112202111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112202111200 is an abundant number, since it is smaller than the sum of its proper divisors (45353015768568).

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

20112202111200 is a wasteful number, since it uses less digits than its factorization.

20112202111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380084236 (or 8380084223 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112202111200 its reverse (211120221102), we get a palindrome (20323322332302).

The spelling of 20112202111200 in words is "twenty trillion, one hundred twelve billion, two hundred two million, one hundred eleven thousand, two hundred".