12102122212 has 12 divisors (see below), whose sum is σ = 21224657916. Its totient is φ = 6037934240.

The previous prime is 12102122203. The next prime is 12102122243. The reversal of 12102122212 is 21222120121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2176782336 + 9925339876 = 46656^2 + 99626^2 .

It is a super-2 number, since 2×12102122212² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3279643 + ... + 3283330.

It is an arithmetic number, because the mean of its divisors is an integer number (1768721493).

Almost surely, 2^12102122212 is an apocalyptic number.

It is an amenable number.

12102122212 is a deficient number, since it is larger than the sum of its proper divisors (9122535704).

12102122212 is a wasteful number, since it uses less digits than its factorization.

12102122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563438 (or 6563436 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12102122212 its reverse (21222120121), we get a palindrome (33324242333).

The spelling of 12102122212 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, two hundred twelve".