121242101222 has 16 divisors (see below), whose sum is σ = 198700011792. Its totient is φ = 55025644320.

The previous prime is 121242101221. The next prime is 121242101249. The reversal of 121242101222 is 222101242121.

It is a happy number.

121242101222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121242101194 and 121242101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121242101221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4205393 + ... + 4234124.

It is an arithmetic number, because the mean of its divisors is an integer number (12418750737).

Almost surely, 2^121242101222 is an apocalyptic number.

121242101222 is a deficient number, since it is larger than the sum of its proper divisors (77457910570).

121242101222 is a wasteful number, since it uses less digits than its factorization.

121242101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440183.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121242101222 its reverse (222101242121), we get a palindrome (343343343343).

The spelling of 121242101222 in words is "one hundred twenty-one billion, two hundred forty-two million, one hundred one thousand, two hundred twenty-two".