121101 has 8 divisors (see below), whose sum is σ = 165984. Its totient is φ = 78480.

The previous prime is 121081. The next prime is 121123. The reversal of 121101 is 101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121101 - 2¹⁰ = 120077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121151) 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, 435 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (20748).

2¹²¹¹⁰¹ is an apocalyptic number.

It is an amenable number.

121101 is a deficient number, since it is larger than the sum of its proper divisors (44883).

121101 is a wasteful number, since it uses less digits than its factorization.

121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131.

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

The square root of 121101 is about 347.9956896285. The cubic root of 121101 is about 49.4746324463.

Adding to 121101 its reverse (101121), we get a palindrome (222222).

Multiplying 121101 by its reverse (101121), we get a palindrome (12245854221).

It can be divided in two parts, 121 and 101, that multiplied together give a palindrome (12221).

The spelling of 121101 in words is "one hundred twenty-one thousand, one hundred one", and thus it is an iban number.