12022121222212 has 12 divisors (see below), whose sum is σ = 21039228066556. Its totient is φ = 6010913203200.

The previous prime is 12022121222179. The next prime is 12022121222213. The reversal of 12022121222212 is 21222212122021.

It can be written as a sum of positive squares in 2 ways, for example, as 11232056233476 + 790064988736 = 3351426^2 + 888856^2 .

It is not an unprimeable number, because it can be changed into a prime (12022121222213) 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, 36668373 + ... + 36994780.

Almost surely, 2^{12022121222212} is an apocalyptic number.

It is an amenable number.

12022121222212 is a deficient number, since it is larger than the sum of its proper divisors (9017106844344).

12022121222212 is a wasteful number, since it uses less digits than its factorization.

12022121222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73703958 (or 73703956 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12022121222212 its reverse (21222212122021), we get a palindrome (33244333344233).

The spelling of 12022121222212 in words is "twelve trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".