22112142 has 16 divisors (see below), whose sum is σ = 47626320. Its totient is φ = 6803712.

The previous prime is 22112141. The next prime is 22112147. The reversal of 22112142 is 24121122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141667 + ... + 141822.

It is an arithmetic number, because the mean of its divisors is an integer number (2976645).

Almost surely, 2^22112142 is an apocalyptic number.

22112142 is an abundant number, since it is smaller than the sum of its proper divisors (25514178).

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

22112142 is a wasteful number, since it uses less digits than its factorization.

22112142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283507.

The product of its digits is 64, while the sum is 15.

The square root of 22112142 is about 4702.3549419413. The cubic root of 22112142 is about 280.6792268427.

Adding to 22112142 its reverse (24121122), we get a palindrome (46233264).

The spelling of 22112142 in words is "twenty-two million, one hundred twelve thousand, one hundred forty-two".