20112412 has 12 divisors (see below), whose sum is σ = 37049320. Its totient is φ = 9526896.

The previous prime is 20112409. The next prime is 20112413. The reversal of 20112412 is 21421102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112392 and 20112401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132243 + ... + 132394.

Almost surely, 2^20112412 is an apocalyptic number.

It is an amenable number.

20112412 is a deficient number, since it is larger than the sum of its proper divisors (16936908).

20112412 is a wasteful number, since it uses less digits than its factorization.

20112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264660 (or 264658 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20112412 is about 4484.6863881435. The cubic root of 20112412 is about 271.9493670170.

Adding to 20112412 its reverse (21421102), we get a palindrome (41533514).

The spelling of 20112412 in words is "twenty million, one hundred twelve thousand, four hundred twelve".