106611121 has 4 divisors (see below), whose sum is σ = 106785652. Its totient is φ = 106436592.

The previous prime is 106611079. The next prime is 106611133. The reversal of 106611121 is 121116601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121116601 = 3089 ⋅39209.

It can be written as a sum of positive squares in 2 ways, for example, as 14930496 + 91680625 = 3864^2 + 9575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106611121 is a prime.

It is a super-2 number, since 2×106611121² = 22731862241753282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106611151) 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 3 ways as a sum of consecutive naturals, for example, 86346 + ... + 87571.

It is an arithmetic number, because the mean of its divisors is an integer number (26696413).

Almost surely, 2^106611121 is an apocalyptic number.

It is an amenable number.

106611121 is a deficient number, since it is larger than the sum of its proper divisors (174531).

106611121 is an equidigital number, since it uses as much as digits as its factorization.

106611121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174530.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 106611121 is about 10325.2661466908. The cubic root of 106611121 is about 474.1701054678.

Adding to 106611121 its reverse (121116601), we get a palindrome (227727722).

The spelling of 106611121 in words is "one hundred six million, six hundred eleven thousand, one hundred twenty-one".