12222443142 has 48 divisors (see below), whose sum is σ = 32593186080. Its totient is φ = 3223501056.

The previous prime is 12222443119. The next prime is 12222443147. The reversal of 12222443142 is 24134422221.

It is a happy number.

12222443142 is a `hidden beast` number, since 1 + 2 + 2 + 224 + 431 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222443147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3729267 + ... + 3732542.

It is an arithmetic number, because the mean of its divisors is an integer number (679024710).

Almost surely, 2^12222443142 is an apocalyptic number.

12222443142 is an abundant number, since it is smaller than the sum of its proper divisors (20370742938).

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

12222443142 is a wasteful number, since it uses less digits than its factorization.

12222443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461837 (or 7461834 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 12222443142 its reverse (24134422221), we get a palindrome (36356865363).

The spelling of 12222443142 in words is "twelve billion, two hundred twenty-two million, four hundred forty-three thousand, one hundred forty-two".