12142242012 has 24 divisors (see below), whose sum is σ = 28501554816. Its totient is φ = 4023177328.

The previous prime is 12142241999. The next prime is 12142242017. The reversal of 12142242012 is 21024224121.

It is a self number, because there is not a number n which added to its sum of digits gives 12142242012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142242017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3027498 + ... + 3031505.

It is an arithmetic number, because the mean of its divisors is an integer number (1187564784).

Almost surely, 2^12142242012 is an apocalyptic number.

12142242012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12142242012 is an abundant number, since it is smaller than the sum of its proper divisors (16359312804).

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

12142242012 is a wasteful number, since it uses less digits than its factorization.

12142242012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059177 (or 6059175 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12142242012 its reverse (21024224121), we get a palindrome (33166466133).

The spelling of 12142242012 in words is "twelve billion, one hundred forty-two million, two hundred forty-two thousand, twelve".