12022212212 has 12 divisors (see below), whose sum is σ = 21180072900. Its totient is φ = 5970762816.

The previous prime is 12022212211. The next prime is 12022212259. The reversal of 12022212212 is 21221222021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5382569956 + 6639642256 = 73366^2 + 81484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022212211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10085153 + ... + 10086344.

It is an arithmetic number, because the mean of its divisors is an integer number (1765006075).

Almost surely, 2^12022212212 is an apocalyptic number.

It is an amenable number.

12022212212 is a deficient number, since it is larger than the sum of its proper divisors (9157860688).

12022212212 is a wasteful number, since it uses less digits than its factorization.

12022212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20171650 (or 20171648 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12022212212 its reverse (21221222021), we get a palindrome (33243434233).

The spelling of 12022212212 in words is "twelve billion, twenty-two million, two hundred twelve thousand, two hundred twelve".