121201112222 has 8 divisors (see below), whose sum is σ = 181803301200. Its totient is φ = 60600011824.

The previous prime is 121201112209. The next prime is 121201112237. The reversal of 121201112222 is 222211102121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121201112222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118154 + ... + 506322.

It is an arithmetic number, because the mean of its divisors is an integer number (22725412650).

Almost surely, 2^121201112222 is an apocalyptic number.

121201112222 is a deficient number, since it is larger than the sum of its proper divisors (60602188978).

121201112222 is a wasteful number, since it uses less digits than its factorization.

121201112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544290.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121201112222 its reverse (222211102121), we get a palindrome (343412214343).

The spelling of 121201112222 in words is "one hundred twenty-one billion, two hundred one million, one hundred twelve thousand, two hundred twenty-two".