12121110120222 has 12 divisors (see below), whose sum is σ = 26262405260520. Its totient is φ = 4040370040068.

The previous prime is 12121110120193. The next prime is 12121110120253. The reversal of 12121110120222 is 22202101112121.

12121110120222 is a `hidden beast` number, since 1 + 212 + 1 + 110 + 120 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 673395006679 = 12121110120222 / (1 + 2 + 1 + 2 + 1 + 1 + 1 + 0 + 1 + 2 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12121110120195 and 12121110120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336697503322 + ... + 336697503357.

It is an arithmetic number, because the mean of its divisors is an integer number (2188533771710).

Almost surely, 2^{12121110120222} is an apocalyptic number.

12121110120222 is an abundant number, since it is smaller than the sum of its proper divisors (14141295140298).

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

12121110120222 is a wasteful number, since it uses less digits than its factorization.

12121110120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673395006687 (or 673395006684 counting only the distinct ones).

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

Adding to 12121110120222 its reverse (22202101112121), we get a palindrome (34323211232343).

The spelling of 12121110120222 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-two".