121112201122 has 12 divisors (see below), whose sum is σ = 199684993158. Its totient is φ = 55051000400.

The previous prime is 121112201117. The next prime is 121112201129. The reversal of 121112201122 is 221102211121.

It can be written as a sum of positive squares in only one way, i.e., 120818112921 + 294088201 = 347589^2 + 17149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121112201096 and 121112201105.

It is not an unprimeable number, because it can be changed into a prime (121112201129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250231579 + ... + 250232062.

Almost surely, 2^121112201122 is an apocalyptic number.

121112201122 is a deficient number, since it is larger than the sum of its proper divisors (78572792036).

121112201122 is a wasteful number, since it uses less digits than its factorization.

121112201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500463665 (or 500463654 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112201122 its reverse (221102211121), we get a palindrome (342214412243).

Subtracting 121112201122 from its reverse (221102211121), we obtain a palindrome (99990009999).

The spelling of 121112201122 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred one thousand, one hundred twenty-two".