12001002212 has 24 divisors (see below), whose sum is σ = 21717412416. Its totient is φ = 5799407328.

The previous prime is 12001002199. The next prime is 12001002229. The reversal of 12001002212 is 21220010021.

It is a happy number.

It is a super-3 number, since 3×12001002212³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001002193 and 12001002202.

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, 408248 + ... + 436655.

It is an arithmetic number, because the mean of its divisors is an integer number (904892184).

Almost surely, 2^12001002212 is an apocalyptic number.

It is an amenable number.

12001002212 is a deficient number, since it is larger than the sum of its proper divisors (9716410204).

12001002212 is a wasteful number, since it uses less digits than its factorization.

12001002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845027 (or 845025 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12001002212 its reverse (21220010021), we get a palindrome (33221012233).

The spelling of 12001002212 in words is "twelve billion, one million, two thousand, two hundred twelve".