12221011110222 has 24 divisors (see below), whose sum is σ = 26495273375064. Its totient is φ = 4071144836304.

The previous prime is 12221011110199. The next prime is 12221011110247. The reversal of 12221011110222 is 22201111012221.

12221011110222 is a `hidden beast` number, since 122 + 210 + 1 + 1 + 110 + 222 = 666.

12221011110222 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 2×12221011110222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12221011110195 and 12221011110204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210431308 + ... + 210489375.

It is an arithmetic number, because the mean of its divisors is an integer number (1103969723961).

Almost surely, 2^{12221011110222} is an apocalyptic number.

12221011110222 is an abundant number, since it is smaller than the sum of its proper divisors (14274262264842).

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

12221011110222 is a wasteful number, since it uses less digits than its factorization.

12221011110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420922304 (or 420922301 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12221011110222 its reverse (22201111012221), we get a palindrome (34422122122443).

The spelling of 12221011110222 in words is "twelve trillion, two hundred twenty-one billion, eleven million, one hundred ten thousand, two hundred twenty-two".