121112201 has 4 divisors (see below), whose sum is σ = 138413952. Its totient is φ = 103810452.

The previous prime is 121112197. The next prime is 121112203. The reversal of 121112201 is 102211121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121112201 - 2² = 121112197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121112203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8650865 + ... + 8650878.

It is an arithmetic number, because the mean of its divisors is an integer number (34603488).

Almost surely, 2^121112201 is an apocalyptic number.

It is an amenable number.

121112201 is a deficient number, since it is larger than the sum of its proper divisors (17301751).

121112201 is an equidigital number, since it uses as much as digits as its factorization.

121112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17301750.

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

The square root of 121112201 is about 11005.0988637086. The cubic root of 121112201 is about 494.7615775238.

Adding to 121112201 its reverse (102211121), we get a palindrome (223323322).

The spelling of 121112201 in words is "one hundred twenty-one million, one hundred twelve thousand, two hundred one".