12042221332 has 24 divisors (see below), whose sum is σ = 21339051552. Its totient is φ = 5945426400.

The previous prime is 12042221327. The next prime is 12042221353. The reversal of 12042221332 is 23312224021.

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, 698982 + ... + 716002.

It is an arithmetic number, because the mean of its divisors is an integer number (889127148).

Almost surely, 2^12042221332 is an apocalyptic number.

It is an amenable number.

12042221332 is a deficient number, since it is larger than the sum of its proper divisors (9296830220).

12042221332 is a wasteful number, since it uses less digits than its factorization.

12042221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19239 (or 19237 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12042221332 its reverse (23312224021), we get a palindrome (35354445353).

The spelling of 12042221332 in words is "twelve billion, forty-two million, two hundred twenty-one thousand, three hundred thirty-two".