5611021101 has 12 divisors (see below), whose sum is σ = 9262638112. Its totient is φ = 3206297736.

The previous prime is 5611021027. The next prime is 5611021153. The reversal of 5611021101 is 1011201165.

It is a happy number.

5611021101 is a `hidden beast` number, since 561 + 1 + 0 + 2 + 1 + 101 = 666.

It is not a de Polignac number, because 5611021101 - 2¹⁵ = 5610988333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611021301) 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 11 ways as a sum of consecutive naturals, for example, 44531851 + ... + 44531976.

Almost surely, 2^5611021101 is an apocalyptic number.

It is an amenable number.

5611021101 is a deficient number, since it is larger than the sum of its proper divisors (3651617011).

5611021101 is a wasteful number, since it uses less digits than its factorization.

5611021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89063840 (or 89063837 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 5611021101 is about 74906.7493687985. The cubic root of 5611021101 is about 1776.9722019507.

Adding to 5611021101 its reverse (1011201165), we get a palindrome (6622222266).

The spelling of 5611021101 in words is "five billion, six hundred eleven million, twenty-one thousand, one hundred one".