20112240000 has 320 divisors, whose sum is σ = 68216163840. Its totient is φ = 5246208000.

The previous prime is 20112239981. The next prime is 20112240013. The reversal of 20112240000 is 4221102.

It is a tau number, because it is divible by the number of its divisors (320).

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11279109 + ... + 11280891.

It is an arithmetic number, because the mean of its divisors is an integer number (213175512).

Almost surely, 2^20112240000 is an apocalyptic number.

20112240000 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 20112240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34108081920).

20112240000 is an abundant number, since it is smaller than the sum of its proper divisors (48103923840).

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

20112240000 is an equidigital number, since it uses as much as digits as its factorization.

20112240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1840 counting only the distinct ones).

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

Adding to 20112240000 its reverse (4221102), we get a palindrome (20116461102).

The spelling of 20112240000 in words is "twenty billion, one hundred twelve million, two hundred forty thousand".