12222121112102 has 48 divisors (see below), whose sum is σ = 20345500109376. Its totient is φ = 5461096687200.

The previous prime is 12222121112099. The next prime is 12222121112137. The reversal of 12222121112102 is 20121112122221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136419173 + ... + 136508735.

It is an arithmetic number, because the mean of its divisors is an integer number (423864585612).

Almost surely, 2^{12222121112102} is an apocalyptic number.

12222121112102 is a deficient number, since it is larger than the sum of its proper divisors (8123378997274).

12222121112102 is a wasteful number, since it uses less digits than its factorization.

12222121112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91365 (or 91304 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12222121112102 its reverse (20121112122221), we get a palindrome (32343233234323).

The spelling of 12222121112102 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, one hundred two".