12221055304 has 32 divisors (see below), whose sum is σ = 23553519480. Its totient is φ = 5940393984.

The previous prime is 12221055239. The next prime is 12221055307. The reversal of 12221055304 is 40355012221.

It can be written as a sum of positive squares in 4 ways, for example, as 12122450404 + 98604900 = 110102^2 + 9930^2 .

It is not an unprimeable number, because it can be changed into a prime (12221055307) 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, 349464 + ... + 382840.

Almost surely, 2^12221055304 is an apocalyptic number.

It is an amenable number.

12221055304 is a deficient number, since it is larger than the sum of its proper divisors (11332464176).

12221055304 is a wasteful number, since it uses less digits than its factorization.

12221055304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34657 (or 34653 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12221055304 its reverse (40355012221), we get a palindrome (52576067525).

The spelling of 12221055304 in words is "twelve billion, two hundred twenty-one million, fifty-five thousand, three hundred four".