20112224112 has 60 divisors (see below), whose sum is σ = 57209044984. Its totient is φ = 6594168960.

The previous prime is 20112224089. The next prime is 20112224129. The reversal of 20112224112 is 21142221102.

20112224112 is a `hidden beast` number, since 20 + 11 + 222 + 411 + 2 = 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, 1136038 + ... + 1153605.

Almost surely, 2^20112224112 is an apocalyptic number.

It is an amenable number.

20112224112 is an abundant number, since it is smaller than the sum of its proper divisors (37096820872).

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

20112224112 is a wasteful number, since it uses less digits than its factorization.

20112224112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289718 (or 2289709 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20112224112 its reverse (21142221102), we get a palindrome (41254445214).

The spelling of 20112224112 in words is "twenty billion, one hundred twelve million, two hundred twenty-four thousand, one hundred twelve".