12211214212 has 12 divisors (see below), whose sum is σ = 21382770640. Its totient is φ = 6101851176.

The previous prime is 12211214203. The next prime is 12211214221. The reversal of 12211214212 is 21241211221.

It is an interprime number because it is at equal distance from previous prime (12211214203) and next prime (12211214221).

It is a super-2 number, since 2×12211214212² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12211214212.

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, 931662 + ... + 944677.

Almost surely, 2^12211214212 is an apocalyptic number.

It is an amenable number.

12211214212 is a deficient number, since it is larger than the sum of its proper divisors (9171556428).

12211214212 is a wasteful number, since it uses less digits than its factorization.

12211214212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877970 (or 1877968 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

Adding to 12211214212 its reverse (21241211221), we get a palindrome (33452425433).

The spelling of 12211214212 in words is "twelve billion, two hundred eleven million, two hundred fourteen thousand, two hundred twelve".