12211301212 has 24 divisors (see below), whose sum is σ = 24683808240. Its totient is φ = 5224085760.

The previous prime is 12211301183. The next prime is 12211301231. The reversal of 12211301212 is 21210311221.

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, 8161887 + ... + 8163382.

It is an arithmetic number, because the mean of its divisors is an integer number (1028492010).

Almost surely, 2^12211301212 is an apocalyptic number.

It is an amenable number.

12211301212 is an abundant number, since it is smaller than the sum of its proper divisors (12472507028).

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

12211301212 is a wasteful number, since it uses less digits than its factorization.

12211301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16325301 (or 16325299 counting only the distinct ones).

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

Adding to 12211301212 its reverse (21210311221), we get a palindrome (33421612433).

The spelling of 12211301212 in words is "twelve billion, two hundred eleven million, three hundred one thousand, two hundred twelve".