121201110122 has 16 divisors (see below), whose sum is σ = 193110900552. Its totient is φ = 56853588480.

The previous prime is 121201110089. The next prime is 121201110259. The reversal of 121201110122 is 221011102121.

It can be written as a sum of positive squares in 4 ways, for example, as 113306965321 + 7894144801 = 336611^2 + 88849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121201110097 and 121201110106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5683829 + ... + 5705112.

Almost surely, 2^121201110122 is an apocalyptic number.

121201110122 is a deficient number, since it is larger than the sum of its proper divisors (71909790430).

121201110122 is a wasteful number, since it uses less digits than its factorization.

121201110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389273.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121201110122 its reverse (221011102121), we get a palindrome (342212212243).

The spelling of 121201110122 in words is "one hundred twenty-one billion, two hundred one million, one hundred ten thousand, one hundred twenty-two".