12221120000022 has 32 divisors (see below), whose sum is σ = 25880262182784. Its totient is φ = 3834040809600.

The previous prime is 12221119999967. The next prime is 12221120000081. The reversal of 12221120000022 is 22000002112221.

It is a junction number, because it is equal to n+sod(n) for n = 12221119999956 and 12221120000010.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11622997 + ... + 12630767.

It is an arithmetic number, because the mean of its divisors is an integer number (808758193212).

Almost surely, 2^{12221120000022} is an apocalyptic number.

12221120000022 is an abundant number, since it is smaller than the sum of its proper divisors (13659142182762).

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

12221120000022 is a wasteful number, since it uses less digits than its factorization.

12221120000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126684.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12221120000022 its reverse (22000002112221), we get a palindrome (34221122112243).

The spelling of 12221120000022 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, twenty-two", and thus it is an aban number.