12213421292 has 24 divisors (see below), whose sum is σ = 22109122560. Its totient is φ = 5897353680.

The previous prime is 12213421289. The next prime is 12213421301. The reversal of 12213421292 is 29212431221.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43418 + ... + 162209.

It is an arithmetic number, because the mean of its divisors is an integer number (921213440).

Almost surely, 2^12213421292 is an apocalyptic number.

It is an amenable number.

12213421292 is a deficient number, since it is larger than the sum of its proper divisors (9895701268).

12213421292 is a wasteful number, since it uses less digits than its factorization.

12213421292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206141 (or 206139 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The spelling of 12213421292 in words is "twelve billion, two hundred thirteen million, four hundred twenty-one thousand, two hundred ninety-two".