20200112120 has 64 divisors (see below), whose sum is σ = 47084163840. Its totient is φ = 7791436800.

The previous prime is 20200112087. The next prime is 20200112131. The reversal of 20200112120 is 2121100202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319454 + ... + 377426.

It is an arithmetic number, because the mean of its divisors is an integer number (735690060).

Almost surely, 2^20200112120 is an apocalyptic number.

20200112120 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 20200112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23542081920).

20200112120 is an abundant number, since it is smaller than the sum of its proper divisors (26884051720).

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

20200112120 is a wasteful number, since it uses less digits than its factorization.

20200112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58296 (or 58292 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20200112120 its reverse (2121100202), we get a palindrome (22321212322).

The spelling of 20200112120 in words is "twenty billion, two hundred million, one hundred twelve thousand, one hundred twenty".