12021422304 has 48 divisors (see below), whose sum is σ = 31644224640. Its totient is φ = 3995967360.

The previous prime is 12021422293. The next prime is 12021422377. The reversal of 12021422304 is 40322412021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12021422304² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139942 + ... + 208869.

It is an arithmetic number, because the mean of its divisors is an integer number (659254680).

Almost surely, 2^12021422304 is an apocalyptic number.

It is an amenable number.

12021422304 is an abundant number, since it is smaller than the sum of its proper divisors (19622802336).

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

12021422304 is a wasteful number, since it uses less digits than its factorization.

12021422304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349183 (or 349175 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12021422304 its reverse (40322412021), we get a palindrome (52343834325).

The spelling of 12021422304 in words is "twelve billion, twenty-one million, four hundred twenty-two thousand, three hundred four".