12221204040222 has 16 divisors (see below), whose sum is σ = 24442450087440. Its totient is φ = 4073727678912.

The previous prime is 12221204040191. The next prime is 12221204040239. The reversal of 12221204040222 is 22204040212221.

It is a junction number, because it is equal to n+sod(n) for n = 12221204040192 and 12221204040201.

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, 3040554 + ... + 5804082.

It is an arithmetic number, because the mean of its divisors is an integer number (1527653130465).

Almost surely, 2^{12221204040222} is an apocalyptic number.

12221204040222 is an abundant number, since it is smaller than the sum of its proper divisors (12221246047218).

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

12221204040222 is a wasteful number, since it uses less digits than its factorization.

12221204040222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500587.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 12221204040222 its reverse (22204040212221), we get a palindrome (34425244252443).

The spelling of 12221204040222 in words is "twelve trillion, two hundred twenty-one billion, two hundred four million, forty thousand, two hundred twenty-two".