12002022212178 has 8 divisors (see below), whose sum is σ = 24004044424368. Its totient is φ = 4000674070724.

The previous prime is 12002022212177. The next prime is 12002022212209. The reversal of 12002022212178 is 87121222020021.

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

12002022212178 is an admirable number.

It is a super-2 number, since 2×12002022212178² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12002022212177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000168517676 + ... + 1000168517687.

It is an arithmetic number, because the mean of its divisors is an integer number (3000505553046).

Almost surely, 2^{12002022212178} is an apocalyptic number.

12002022212178 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12002022212178 is a wasteful number, since it uses less digits than its factorization.

12002022212178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000337035368.

The product of its (nonzero) digits is 3584, while the sum is 30.

Adding to 12002022212178 its reverse (87121222020021), we get a palindrome (99123244232199).

The spelling of 12002022212178 in words is "twelve trillion, two billion, twenty-two million, two hundred twelve thousand, one hundred seventy-eight".