121102222123 has 2 divisors, whose sum is σ = 121102222124. Its totient is φ = 121102222122.

The previous prime is 121102222103. The next prime is 121102222177. The reversal of 121102222123 is 321222201121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121102222123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121102222123.

It is not a weakly prime, because it can be changed into another prime (121102222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60551111061 + 60551111062.

It is an arithmetic number, because the mean of its divisors is an integer number (60551111062).

Almost surely, 2^121102222123 is an apocalyptic number.

121102222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

121102222123 is an equidigital number, since it uses as much as digits as its factorization.

121102222123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121102222123 its reverse (321222201121), we get a palindrome (442324423244).

The spelling of 121102222123 in words is "one hundred twenty-one billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-three".