12211112212202 has 8 divisors (see below), whose sum is σ = 18362345796612. Its totient is φ = 6090330280000.

The previous prime is 12211112212181. The next prime is 12211112212207. The reversal of 12211112212202 is 20221221111221.

It can be written as a sum of positive squares in 2 ways, for example, as 10373675030761 + 1837437181441 = 3220819^2 + 1355521^2 .

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

It is a super-2 number, since 2×12211112212202² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211112212207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7612912049 + ... + 7612913652.

Almost surely, 2^{12211112212202} is an apocalyptic number.

12211112212202 is a deficient number, since it is larger than the sum of its proper divisors (6151233584410).

12211112212202 is a wasteful number, since it uses less digits than its factorization.

12211112212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225826104.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12211112212202 its reverse (20221221111221), we get a palindrome (32432333323423).

The spelling of 12211112212202 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twelve thousand, two hundred two".