121111222201222 has 8 divisors (see below), whose sum is σ = 198181999965672. Its totient is φ = 55050555546000.

The previous prime is 121111222201181. The next prime is 121111222201241. The reversal of 121111222201222 is 222102222111121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 5505055554601 = 121111222201222 / (1 + 2 + 1 + 1 + 1 + 1 + 2 + 2 + 2 + 2 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 121111222201193 and 121111222201202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752527777279 + ... + 2752527777322.

It is an arithmetic number, because the mean of its divisors is an integer number (24772749995709).

Almost surely, 2^{121111222201222} is an apocalyptic number.

121111222201222 is a deficient number, since it is larger than the sum of its proper divisors (77070777764450).

121111222201222 is a wasteful number, since it uses less digits than its factorization.

121111222201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505055554614.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121111222201222 its reverse (222102222111121), we get a palindrome (343213444312343).

The spelling of 121111222201222 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty-two".