121110221222 has 16 divisors (see below), whose sum is σ = 182022660000. Its totient is φ = 60436119360.

The previous prime is 121110221213. The next prime is 121110221257. The reversal of 121110221222 is 222122011121.

It is a self number, because there is not a number n which added to its sum of digits gives 121110221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096279 + ... + 2153277.

It is an arithmetic number, because the mean of its divisors is an integer number (11376416250).

Almost surely, 2^121110221222 is an apocalyptic number.

121110221222 is a deficient number, since it is larger than the sum of its proper divisors (60912438778).

121110221222 is a wasteful number, since it uses less digits than its factorization.

121110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59071.

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

Adding to 121110221222 its reverse (222122011121), we get a palindrome (343232232343).

The spelling of 121110221222 in words is "one hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".