121224422122 has 4 divisors (see below), whose sum is σ = 181836633186. Its totient is φ = 60612211060.

The previous prime is 121224422087. The next prime is 121224422131. The reversal of 121224422122 is 221224422121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115035610561 + 6188811561 = 339169^2 + 78669^2 .

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 as a sum of consecutive naturals, namely, 30306105529 + ... + 30306105532.

Almost surely, 2^121224422122 is an apocalyptic number.

121224422122 is a deficient number, since it is larger than the sum of its proper divisors (60612211064).

121224422122 is an equidigital number, since it uses as much as digits as its factorization.

121224422122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60612211063.

The product of its digits is 2048, while the sum is 25.

Adding to 121224422122 its reverse (221224422121), we get a palindrome (342448844243).

Subtracting 121224422122 from its reverse (221224422121), we obtain a palindrome (99999999999).

The spelling of 121224422122 in words is "one hundred twenty-one billion, two hundred twenty-four million, four hundred twenty-two thousand, one hundred twenty-two".