12012011222 has 4 divisors (see below), whose sum is σ = 18018016836. Its totient is φ = 6006005610.

The previous prime is 12012011191. The next prime is 12012011287. The reversal of 12012011222 is 22211021021.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12012011197 and 12012011206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003002804 + ... + 3003002807.

It is an arithmetic number, because the mean of its divisors is an integer number (4504504209).

Almost surely, 2^12012011222 is an apocalyptic number.

12012011222 is a deficient number, since it is larger than the sum of its proper divisors (6006005614).

12012011222 is an equidigital number, since it uses as much as digits as its factorization.

12012011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006005613.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12012011222 its reverse (22211021021), we get a palindrome (34223032243).

The spelling of 12012011222 in words is "twelve billion, twelve million, eleven thousand, two hundred twenty-two".