20120320220112 has 60 divisors (see below), whose sum is σ = 64353087691360. Its totient is φ = 5748662919744.

The previous prime is 20120320220081. The next prime is 20120320220129. The reversal of 20120320220112 is 21102202302102.

20120320220112 is a `hidden beast` number, since 2 + 0 + 12 + 0 + 320 + 220 + 112 = 666.

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

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 11 ways as a sum of consecutive naturals, for example, 9980316562 + ... + 9980318577.

Almost surely, 2^{20120320220112} is an apocalyptic number.

It is an amenable number.

20120320220112 is an abundant number, since it is smaller than the sum of its proper divisors (44232767471248).

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

20120320220112 is a wasteful number, since it uses less digits than its factorization.

20120320220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19960635160 (or 19960635151 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20120320220112 its reverse (21102202302102), we get a palindrome (41222522522214).

The spelling of 20120320220112 in words is "twenty trillion, one hundred twenty billion, three hundred twenty million, two hundred twenty thousand, one hundred twelve".