12140223402 has 64 divisors (see below), whose sum is σ = 25387147008. Its totient is φ = 3866688000.

The previous prime is 12140223367. The next prime is 12140223409. The reversal of 12140223402 is 20432204121.

It is not an unprimeable number, because it can be changed into a prime (12140223409) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4427752 + ... + 4430492.

It is an arithmetic number, because the mean of its divisors is an integer number (396674172).

Almost surely, 2^12140223402 is an apocalyptic number.

12140223402 is an abundant number, since it is smaller than the sum of its proper divisors (13246923606).

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

12140223402 is a wasteful number, since it uses less digits than its factorization.

12140223402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12140223402 its reverse (20432204121), we get a palindrome (32572427523).

The spelling of 12140223402 in words is "twelve billion, one hundred forty million, two hundred twenty-three thousand, four hundred two".