12201211001222 has 4 divisors (see below), whose sum is σ = 18301816501836. Its totient is φ = 6100605500610.

The previous prime is 12201211001207. The next prime is 12201211001227. The reversal of 12201211001222 is 22210011210221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12201211001222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201211001227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050302750304 + ... + 3050302750307.

It is an arithmetic number, because the mean of its divisors is an integer number (4575454125459).

Almost surely, 2^{12201211001222} is an apocalyptic number.

12201211001222 is a deficient number, since it is larger than the sum of its proper divisors (6100605500614).

12201211001222 is an equidigital number, since it uses as much as digits as its factorization.

12201211001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100605500613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12201211001222 its reverse (22210011210221), we get a palindrome (34411222211443).

The spelling of 12201211001222 in words is "twelve trillion, two hundred one billion, two hundred eleven million, one thousand, two hundred twenty-two".