12211012312 has 16 divisors (see below), whose sum is σ = 23122339200. Its totient is φ = 6045055200.

The previous prime is 12211012301. The next prime is 12211012337. The reversal of 12211012312 is 21321011221.

It is a congruent number.

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, 7555512 + ... + 7557127.

It is an arithmetic number, because the mean of its divisors is an integer number (1445146200).

Almost surely, 2^12211012312 is an apocalyptic number.

It is an amenable number.

12211012312 is a deficient number, since it is larger than the sum of its proper divisors (10911326888).

12211012312 is a wasteful number, since it uses less digits than its factorization.

12211012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15112746 (or 15112742 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12211012312 its reverse (21321011221), we get a palindrome (33532023533).

The spelling of 12211012312 in words is "twelve billion, two hundred eleven million, twelve thousand, three hundred twelve".