12011222004 has 24 divisors (see below), whose sum is σ = 28031431680. Its totient is φ = 4002991104.

The previous prime is 12011221969. The next prime is 12011222063. The reversal of 12011222004 is 40022211021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24909 + ... + 156980.

It is an arithmetic number, because the mean of its divisors is an integer number (1167976320).

Almost surely, 2^12011222004 is an apocalyptic number.

It is an amenable number.

12011222004 is an abundant number, since it is smaller than the sum of its proper divisors (16020209676).

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

12011222004 is a wasteful number, since it uses less digits than its factorization.

12011222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187399 (or 187397 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12011222004 its reverse (40022211021), we get a palindrome (52033433025).

The spelling of 12011222004 in words is "twelve billion, eleven million, two hundred twenty-two thousand, four".