121000101 has 16 divisors (see below), whose sum is σ = 175443264. Its totient is φ = 73868544.

The previous prime is 121000049. The next prime is 121000123. The reversal of 121000101 is 101000121.

It is not a de Polignac number, because 121000101 - 2⁹ = 120999589 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30175 + ... + 33948.

It is an arithmetic number, because the mean of its divisors is an integer number (10965204).

Almost surely, 2^121000101 is an apocalyptic number.

It is an amenable number.

121000101 is a deficient number, since it is larger than the sum of its proper divisors (54443163).

121000101 is a wasteful number, since it uses less digits than its factorization.

121000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64180.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 121000101 is about 11000.0045909081. The cubic root of 121000101 is about 494.6088819432.

Adding to 121000101 its reverse (101000121), we get a palindrome (222000222).

The spelling of 121000101 in words is "one hundred twenty-one million, one hundred one", and thus it is an aban number.