12000212222 has 4 divisors (see below), whose sum is σ = 18000318336. Its totient is φ = 6000106110.

The previous prime is 12000212219. The next prime is 12000212249. The reversal of 12000212222 is 22221200021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22221200021 = 17 ⋅1307129413.

It is a junction number, because it is equal to n+sod(n) for n = 12000212197 and 12000212206.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3000053054 + ... + 3000053057.

It is an arithmetic number, because the mean of its divisors is an integer number (4500079584).

Almost surely, 2^12000212222 is an apocalyptic number.

12000212222 is a deficient number, since it is larger than the sum of its proper divisors (6000106114).

12000212222 is an equidigital number, since it uses as much as digits as its factorization.

12000212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000106113.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12000212222 its reverse (22221200021), we get a palindrome (34221412243).

It can be divided in two parts, 1200021 and 2222, that multiplied together give a palindrome (2666446662).

The spelling of 12000212222 in words is "twelve billion, two hundred twelve thousand, two hundred twenty-two".