12221220112102 has 16 divisors (see below), whose sum is σ = 18954354511872. Its totient is φ = 5903751420360.

The previous prime is 12221220112099. The next prime is 12221220112103. The reversal of 12221220112102 is 20121102212221.

It is a self number, because there is not a number n which added to its sum of digits gives 12221220112102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221220112103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162331768 + ... + 162407035.

It is an arithmetic number, because the mean of its divisors is an integer number (1184647156992).

Almost surely, 2^{12221220112102} is an apocalyptic number.

12221220112102 is a deficient number, since it is larger than the sum of its proper divisors (6733134399770).

12221220112102 is a wasteful number, since it uses less digits than its factorization.

12221220112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324739443.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221220112102 its reverse (20121102212221), we get a palindrome (32342322324323).

The spelling of 12221220112102 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, one hundred two".