12211230404 has 24 divisors (see below), whose sum is σ = 21622295520. Its totient is φ = 6033511616.

The previous prime is 12211230401. The next prime is 12211230439. The reversal of 12211230404 is 40403211221.

It is a super-2 number, since 2×12211230404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211230401) 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, 669899 + ... + 687885.

It is an arithmetic number, because the mean of its divisors is an integer number (900928980).

Almost surely, 2^12211230404 is an apocalyptic number.

It is an amenable number.

12211230404 is a deficient number, since it is larger than the sum of its proper divisors (9411065116).

12211230404 is a wasteful number, since it uses less digits than its factorization.

12211230404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19987 (or 19985 counting only the distinct ones).

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

Adding to 12211230404 its reverse (40403211221), we get a palindrome (52614441625).

The spelling of 12211230404 in words is "twelve billion, two hundred eleven million, two hundred thirty thousand, four hundred four".