121201112 has 32 divisors (see below), whose sum is σ = 230790000. Its totient is φ = 59664384.

The previous prime is 121201051. The next prime is 121201117. The reversal of 121201112 is 211102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201093 and 121201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242639 + ... + 243137.

Almost surely, 2^121201112 is an apocalyptic number.

It is an amenable number.

121201112 is a deficient number, since it is larger than the sum of its proper divisors (109588888).

121201112 is a wasteful number, since it uses less digits than its factorization.

121201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 121201112 is about 11009.1376592356. The cubic root of 121201112 is about 494.8826195164.

Adding to 121201112 its reverse (211102121), we get a palindrome (332303233).

The spelling of 121201112 in words is "one hundred twenty-one million, two hundred one thousand, one hundred twelve".