20112435112 has 96 divisors (see below), whose sum is σ = 47579313600. Its totient is φ = 7801770240.

The previous prime is 20112435103. The next prime is 20112435127. The reversal of 20112435112 is 21153421102.

It is a super-2 number, since 2×20112435112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1572439 + ... + 1585177.

It is an arithmetic number, because the mean of its divisors is an integer number (495617850).

Almost surely, 2^20112435112 is an apocalyptic number.

20112435112 is a gapful number since it is divisible by the number (22) 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 20112435112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23789656800).

20112435112 is an abundant number, since it is smaller than the sum of its proper divisors (27466878488).

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

20112435112 is a wasteful number, since it uses less digits than its factorization.

20112435112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13007 (or 12992 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 20112435112 its reverse (21153421102), we get a palindrome (41265856214).

The spelling of 20112435112 in words is "twenty billion, one hundred twelve million, four hundred thirty-five thousand, one hundred twelve".