12210020012 has 6 divisors (see below), whose sum is σ = 21367535028. Its totient is φ = 6105010004.

The previous prime is 12210019999. The next prime is 12210020071. The reversal of 12210020012 is 21002001221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12210019975 and 12210020002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1526252498 + ... + 1526252505.

It is an arithmetic number, because the mean of its divisors is an integer number (3561255838).

Almost surely, 2^12210020012 is an apocalyptic number.

It is an amenable number.

12210020012 is a deficient number, since it is larger than the sum of its proper divisors (9157515016).

12210020012 is a wasteful number, since it uses less digits than its factorization.

12210020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052505007 (or 3052505005 counting only the distinct ones).

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

Adding to 12210020012 its reverse (21002001221), we get a palindrome (33212021233).

The spelling of 12210020012 in words is "twelve billion, two hundred ten million, twenty thousand, twelve".