20122311112200 has 576 divisors, whose sum is σ = 75505797319680. Its totient is φ = 4760990208000.

The previous prime is 20122311112193. The next prime is 20122311112223. The reversal of 20122311112200 is 221111322102.

20122311112200 is a `hidden beast` number, since 2 + 0 + 122 + 311 + 11 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 143 ways as a sum of consecutive naturals, for example, 200385204 + ... + 200485596.

It is an arithmetic number, because the mean of its divisors is an integer number (131086453680).

Almost surely, 2^{20122311112200} is an apocalyptic number.

20122311112200 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 20122311112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37752898659840).

20122311112200 is an abundant number, since it is smaller than the sum of its proper divisors (55383486207480).

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

20122311112200 is a wasteful number, since it uses less digits than its factorization.

20122311112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100670 (or 100658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20122311112200 its reverse (221111322102), we get a palindrome (20343422434302).

The spelling of 20122311112200 in words is "twenty trillion, one hundred twenty-two billion, three hundred eleven million, one hundred twelve thousand, two hundred".