12221200212122 has 8 divisors (see below), whose sum is σ = 19998327619872. Its totient is φ = 5555091005500.

The previous prime is 12221200212113. The next prime is 12221200212131. The reversal of 12221200212122 is 22121200212221.

It is an interprime number because it is at equal distance from previous prime (12221200212113) and next prime (12221200212131).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12221200212094 and 12221200212103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277754550254 + ... + 277754550297.

It is an arithmetic number, because the mean of its divisors is an integer number (2499790952484).

Almost surely, 2^{12221200212122} is an apocalyptic number.

12221200212122 is a deficient number, since it is larger than the sum of its proper divisors (7777127407750).

12221200212122 is a wasteful number, since it uses less digits than its factorization.

12221200212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555509100564.

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

Adding to 12221200212122 its reverse (22121200212221), we get a palindrome (34342400424343).

Subtracting 12221200212122 from its reverse (22121200212221), we obtain a palindrome (9900000000099).

The spelling of 12221200212122 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, two hundred twelve thousand, one hundred twenty-two".