121101201 has 24 divisors (see below), whose sum is σ = 192768576. Its totient is φ = 72787680.

The previous prime is 121101161. The next prime is 121101203. The reversal of 121101201 is 102101121.

It is a happy number.

It is not a de Polignac number, because 121101201 - 2⁷ = 121101073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121101203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7005 + ... + 17066.

It is an arithmetic number, because the mean of its divisors is an integer number (8032024).

Almost surely, 2^121101201 is an apocalyptic number.

It is an amenable number.

121101201 is a deficient number, since it is larger than the sum of its proper divisors (71667375).

121101201 is a wasteful number, since it uses less digits than its factorization.

121101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24133 (or 24130 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 121101201 is about 11004.5990840194. The cubic root of 121101201 is about 494.7465981849.

Adding to 121101201 its reverse (102101121), we get a palindrome (223202322).

The spelling of 121101201 in words is "one hundred twenty-one million, one hundred one thousand, two hundred one".