20112022200 has 96 divisors (see below), whose sum is σ = 62760447360. Its totient is φ = 5327664000.

The previous prime is 20112022163. The next prime is 20112022223. The reversal of 20112022200 is 222021102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20394 + ... + 201593.

It is an arithmetic number, because the mean of its divisors is an integer number (653754660).

Almost surely, 2^20112022200 is an apocalyptic number.

20112022200 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 20112022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31380223680).

20112022200 is an abundant number, since it is smaller than the sum of its proper divisors (42648425160).

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

20112022200 is a wasteful number, since it uses less digits than its factorization.

20112022200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222157 (or 222148 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20112022200 its reverse (222021102), we get a palindrome (20334043302).

The spelling of 20112022200 in words is "twenty billion, one hundred twelve million, twenty-two thousand, two hundred".