12211001222 has 8 divisors (see below), whose sum is σ = 20933144976. Its totient is φ = 5233286232.

The previous prime is 12211001221. The next prime is 12211001233. The reversal of 12211001222 is 22210011221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 872214373 = 12211001222 / (1 + 2 + 2 + 1 + 1 + 0 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12211001197 and 12211001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211001221) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 436107173 + ... + 436107200.

It is an arithmetic number, because the mean of its divisors is an integer number (2616643122).

Almost surely, 2^12211001222 is an apocalyptic number.

12211001222 is a deficient number, since it is larger than the sum of its proper divisors (8722143754).

12211001222 is an equidigital number, since it uses as much as digits as its factorization.

12211001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872214382.

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

Adding to 12211001222 its reverse (22210011221), we get a palindrome (34421012443).

Subtracting 12211001222 from its reverse (22210011221), we obtain a palindrome (9999009999).

The spelling of 12211001222 in words is "twelve billion, two hundred eleven million, one thousand, two hundred twenty-two".