12211210220222 has 32 divisors (see below), whose sum is σ = 20176877076384. Its totient is φ = 5508241315200.

The previous prime is 12211210220189. The next prime is 12211210220257. The reversal of 12211210220222 is 22202201211221.

It is a super-2 number, since 2×12211210220222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211210220194 and 12211210220203.

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, 24271304 + ... + 24769307.

It is an arithmetic number, because the mean of its divisors is an integer number (630527408637).

Almost surely, 2^{12211210220222} is an apocalyptic number.

12211210220222 is a deficient number, since it is larger than the sum of its proper divisors (7965666856162).

12211210220222 is a wasteful number, since it uses less digits than its factorization.

12211210220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49040844.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12211210220222 its reverse (22202201211221), we get a palindrome (34413411431443).

Subtracting 12211210220222 from its reverse (22202201211221), we obtain a palindrome (9990990990999).

The spelling of 12211210220222 in words is "twelve trillion, two hundred eleven billion, two hundred ten million, two hundred twenty thousand, two hundred twenty-two".