12001222210012 has 24 divisors (see below), whose sum is σ = 24003828101120. Its totient is φ = 5143084444080.

The previous prime is 12001222209959. The next prime is 12001222210063. The reversal of 12001222210012 is 21001222210021.

It is a happy number.

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, 11859564 + ... + 12831667.

Almost surely, 2^{12001222210012} is an apocalyptic number.

It is an amenable number.

12001222210012 is an abundant number, since it is smaller than the sum of its proper divisors (12002605891108).

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

12001222210012 is a wasteful number, since it uses less digits than its factorization.

12001222210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24708601 (or 24708599 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12001222210012 its reverse (21001222210021), we get a palindrome (33002444420033).

Subtracting 12001222210012 from its reverse (21001222210021), we obtain a palindrome (9000000000009).

The spelling of 12001222210012 in words is "twelve trillion, one billion, two hundred twenty-two million, two hundred ten thousand, twelve".