12211101222 has 16 divisors (see below), whose sum is σ = 25707581760. Its totient is φ = 3856137192.

The previous prime is 12211101209. The next prime is 12211101233. The reversal of 12211101222 is 22210111221.

It is a super-2 number, since 2×12211101222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53557348 + ... + 53557575.

It is an arithmetic number, because the mean of its divisors is an integer number (1606723860).

Almost surely, 2^12211101222 is an apocalyptic number.

12211101222 is an abundant number, since it is smaller than the sum of its proper divisors (13496480538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211101222 is a wasteful number, since it uses less digits than its factorization.

12211101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107114947.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12211101222 its reverse (22210111221), we get a palindrome (34421212443).

Subtracting 12211101222 from its reverse (22210111221), we obtain a palindrome (9999009999).

The spelling of 12211101222 in words is "twelve billion, two hundred eleven million, one hundred one thousand, two hundred twenty-two".