12211102212 has 48 divisors (see below), whose sum is σ = 28647702720. Its totient is φ = 4048247808.

The previous prime is 12211102199. The next prime is 12211102217. The reversal of 12211102212 is 21220111221.

It is a super-2 number, since 2×12211102212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211102191 and 12211102200.

It is not an unprimeable number, because it can be changed into a prime (12211102217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3137964 + ... + 3141852.

It is an arithmetic number, because the mean of its divisors is an integer number (596827140).

Almost surely, 2^12211102212 is an apocalyptic number.

12211102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12211102212 is an abundant number, since it is smaller than the sum of its proper divisors (16436600508).

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

12211102212 is a wasteful number, since it uses less digits than its factorization.

12211102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252 (or 5250 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12211102212 its reverse (21220111221), we get a palindrome (33431213433).

Subtracting 12211102212 from its reverse (21220111221), we obtain a palindrome (9009009009).

The spelling of 12211102212 in words is "twelve billion, two hundred eleven million, one hundred two thousand, two hundred twelve".