12121022102112 has 144 divisors (see below), whose sum is σ = 42974532986112. Its totient is φ = 3148317423360.

The previous prime is 12121022102093. The next prime is 12121022102153. The reversal of 12121022102112 is 21120122012121.

12121022102112 is a `hidden beast` number, since 1 + 21 + 210 + 221 + 0 + 211 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 273269268 + ... + 273313619.

It is an arithmetic number, because the mean of its divisors is an integer number (298434256848).

Almost surely, 2^{12121022102112} is an apocalyptic number.

12121022102112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12121022102112 is an abundant number, since it is smaller than the sum of its proper divisors (30853510884000).

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

12121022102112 is a wasteful number, since it uses less digits than its factorization.

12121022102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546582921 (or 546582910 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12121022102112 its reverse (21120122012121), we get a palindrome (33241144114233).

The spelling of 12121022102112 in words is "twelve trillion, one hundred twenty-one billion, twenty-two million, one hundred two thousand, one hundred twelve".