12211320404 has 12 divisors (see below), whose sum is σ = 21640315200. Its totient is φ = 6028373208.

The previous prime is 12211320389. The next prime is 12211320421. The reversal of 12211320404 is 40402311221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19321394 + ... + 19322025.

It is an arithmetic number, because the mean of its divisors is an integer number (1803359600).

Almost surely, 2^12211320404 is an apocalyptic number.

It is an amenable number.

12211320404 is a deficient number, since it is larger than the sum of its proper divisors (9428994796).

12211320404 is a wasteful number, since it uses less digits than its factorization.

12211320404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38643502 (or 38643500 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12211320404 its reverse (40402311221), we get a palindrome (52613631625).

The spelling of 12211320404 in words is "twelve billion, two hundred eleven million, three hundred twenty thousand, four hundred four".