20112243200 has 120 divisors (see below), whose sum is σ = 56948429472. Its totient is φ = 6895595520.

The previous prime is 20112243187. The next prime is 20112243233. The reversal of 20112243200 is 234221102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22634 + ... + 201833.

Almost surely, 2^20112243200 is an apocalyptic number.

20112243200 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 20112243200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28474214736).

20112243200 is an abundant number, since it is smaller than the sum of its proper divisors (36836186272).

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

20112243200 is an equidigital number, since it uses as much as digits as its factorization.

20112243200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224502 (or 224481 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20112243200 its reverse (234221102), we get a palindrome (20346464302).

The spelling of 20112243200 in words is "twenty billion, one hundred twelve million, two hundred forty-three thousand, two hundred".