12211100222 has 4 divisors (see below), whose sum is σ = 18316650336. Its totient is φ = 6105550110.

The previous prime is 12211100191. The next prime is 12211100249. The reversal of 12211100222 is 22200111221.

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

It is a super-2 number, since 2×12211100222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211100197 and 12211100206.

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, 3052775054 + ... + 3052775057.

It is an arithmetic number, because the mean of its divisors is an integer number (4579162584).

Almost surely, 2^12211100222 is an apocalyptic number.

12211100222 is a deficient number, since it is larger than the sum of its proper divisors (6105550114).

12211100222 is an equidigital number, since it uses as much as digits as its factorization.

12211100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105550113.

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

Adding to 12211100222 its reverse (22200111221), we get a palindrome (34411211443).

The spelling of 12211100222 in words is "twelve billion, two hundred eleven million, one hundred thousand, two hundred twenty-two".