12011102212 has 24 divisors (see below), whose sum is σ = 21329015960. Its totient is φ = 5917639680.

The previous prime is 12011102189. The next prime is 12011102221. The reversal of 12011102212 is 21220111021.

It can be written as a sum of positive squares in 4 ways, for example, as 7656950016 + 4354152196 = 87504^2 + 65986^2 .

It is a super-2 number, since 2×12011102212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011102192 and 12011102201.

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, 21262 + ... + 156442.

Almost surely, 2^12011102212 is an apocalyptic number.

It is an amenable number.

12011102212 is a deficient number, since it is larger than the sum of its proper divisors (9317913748).

12011102212 is a wasteful number, since it uses less digits than its factorization.

12011102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135511 (or 135509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011102212 its reverse (21220111021), we get a palindrome (33231213233).

The spelling of 12011102212 in words is "twelve billion, eleven million, one hundred two thousand, two hundred twelve".