12001020022 has 8 divisors (see below), whose sum is σ = 18004729176. Its totient is φ = 5999443632.

The previous prime is 12001020019. The next prime is 12001020071. The reversal of 12001020022 is 22002010021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12001019990 and 12001020008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519048 + ... + 541675.

It is an arithmetic number, because the mean of its divisors is an integer number (2250591147).

Almost surely, 2^12001020022 is an apocalyptic number.

12001020022 is a deficient number, since it is larger than the sum of its proper divisors (6003709154).

12001020022 is a wasteful number, since it uses less digits than its factorization.

12001020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066382.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12001020022 its reverse (22002010021), we get a palindrome (34003030043).

The spelling of 12001020022 in words is "twelve billion, one million, twenty thousand, twenty-two".