12002122212 has 12 divisors (see below), whose sum is σ = 28004951856. Its totient is φ = 4000707400.

The previous prime is 12002122201. The next prime is 12002122229. The reversal of 12002122212 is 21222120021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12002122191 and 12002122200.

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, 500088414 + ... + 500088437.

It is an arithmetic number, because the mean of its divisors is an integer number (2333745988).

Almost surely, 2^12002122212 is an apocalyptic number.

12002122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12002122212 is an abundant number, since it is smaller than the sum of its proper divisors (16002829644).

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

12002122212 is a wasteful number, since it uses less digits than its factorization.

12002122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000176858 (or 1000176856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12002122212 its reverse (21222120021), we get a palindrome (33224242233).

The spelling of 12002122212 in words is "twelve billion, two million, one hundred twenty-two thousand, two hundred twelve".