12121102110222 has 64 divisors (see below), whose sum is σ = 30823575874560. Its totient is φ = 3458691777312.

The previous prime is 12121102110197. The next prime is 12121102110287. The reversal of 12121102110222 is 22201120112121.

12121102110222 is a `hidden beast` number, since 1 + 21 + 211 + 0 + 211 + 0 + 222 = 666.

It is a super-3 number, since 3×12121102110222³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a junction number, because it is equal to n+sod(n) for n = 12121102110195 and 12121102110204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20449338 + ... + 21033725.

It is an arithmetic number, because the mean of its divisors is an integer number (481618373040).

Almost surely, 2^{12121102110222} is an apocalyptic number.

12121102110222 is an abundant number, since it is smaller than the sum of its proper divisors (18702473764338).

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

12121102110222 is a wasteful number, since it uses less digits than its factorization.

12121102110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41483854 (or 41483848 counting only the distinct ones).

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

Adding to 12121102110222 its reverse (22201120112121), we get a palindrome (34322222222343).

The spelling of 12121102110222 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, one hundred ten thousand, two hundred twenty-two".