12211112220222 has 32 divisors (see below), whose sum is σ = 25144834081824. Its totient is φ = 3950484480000.

The previous prime is 12211112220193. The next prime is 12211112220253. The reversal of 12211112220222 is 22202221111221.

12211112220222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12211112220222² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 68495779 + ... + 68673822.

It is an arithmetic number, because the mean of its divisors is an integer number (785776065057).

Almost surely, 2^{12211112220222} is an apocalyptic number.

12211112220222 is an abundant number, since it is smaller than the sum of its proper divisors (12933721861602).

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

12211112220222 is a wasteful number, since it uses less digits than its factorization.

12211112220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137170044.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12211112220222 its reverse (22202221111221), we get a palindrome (34413333331443).

The spelling of 12211112220222 in words is "twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-two".