12021342332 has 24 divisors (see below), whose sum is σ = 22313639040. Its totient is φ = 5650847280.

The previous prime is 12021342331. The next prime is 12021342341. The reversal of 12021342332 is 23324312021.

It is a junction number, because it is equal to n+sod(n) for n = 12021342298 and 12021342307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021342331) 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, 593768 + ... + 613679.

It is an arithmetic number, because the mean of its divisors is an integer number (929734960).

Almost surely, 2^12021342332 is an apocalyptic number.

It is an amenable number.

12021342332 is a deficient number, since it is larger than the sum of its proper divisors (10292296708).

12021342332 is a wasteful number, since it uses less digits than its factorization.

12021342332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207601 (or 1207599 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12021342332 its reverse (23324312021), we get a palindrome (35345654353).

The spelling of 12021342332 in words is "twelve billion, twenty-one million, three hundred forty-two thousand, three hundred thirty-two".