12211111222102 has 128 divisors (see below), whose sum is σ = 20707782617088. Its totient is φ = 5364239731200.

The previous prime is 12211111222087. The next prime is 12211111222103. The reversal of 12211111222102 is 20122211111221.

It is a happy number.

It is a super-2 number, since 2×12211111222102² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12211111222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211111222103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5128562952 + ... + 5128565332.

It is an arithmetic number, because the mean of its divisors is an integer number (161779551696).

Almost surely, 2^{12211111222102} is an apocalyptic number.

12211111222102 is a deficient number, since it is larger than the sum of its proper divisors (8496671394986).

12211111222102 is a wasteful number, since it uses less digits than its factorization.

12211111222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12211111222102 its reverse (20122211111221), we get a palindrome (32333322333323).

The spelling of 12211111222102 in words is "twelve trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty-two thousand, one hundred two".