122121103112 has 16 divisors (see below), whose sum is σ = 229013410860. Its totient is φ = 61050860224.

The previous prime is 122121103057. The next prime is 122121103157. The reversal of 122121103112 is 211301121221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121805188036 + 315915076 = 349006^2 + 17774^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1157723 + ... + 1258794.

Almost surely, 2^122121103112 is an apocalyptic number.

It is an amenable number.

122121103112 is a deficient number, since it is larger than the sum of its proper divisors (106892307748).

122121103112 is a wasteful number, since it uses less digits than its factorization.

122121103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422840 (or 2422836 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 122121103112 its reverse (211301121221), we get a palindrome (333422224333).

The spelling of 122121103112 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred three thousand, one hundred twelve".