121223122 has 8 divisors (see below), whose sum is σ = 183055500. Its totient is φ = 60204624.

The previous prime is 121223117. The next prime is 121223147. The reversal of 121223122 is 221322121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96412761 + 24810361 = 9819^2 + 4981^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121223096 and 121223105.

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, 203097 + ... + 203692.

Almost surely, 2^121223122 is an apocalyptic number.

121223122 is a deficient number, since it is larger than the sum of its proper divisors (61832378).

121223122 is a wasteful number, since it uses less digits than its factorization.

121223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406940.

The product of its digits is 96, while the sum is 16.

The square root of 121223122 is about 11010.1372380184. The cubic root of 121223122 is about 494.9125744318.

Adding to 121223122 its reverse (221322121), we get a palindrome (342545243).

The spelling of 121223122 in words is "one hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty-two".