5611322121 has 16 divisors (see below), whose sum is σ = 8058900480. Its totient is φ = 3462806160.

The previous prime is 5611322113. The next prime is 5611322137. The reversal of 5611322121 is 1212231165.

It is a happy number.

It is not a de Polignac number, because 5611322121 - 2³ = 5611322113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5611322091 and 5611322100.

It is not an unprimeable number, because it can be changed into a prime (5611322111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1309531 + ... + 1313808.

It is an arithmetic number, because the mean of its divisors is an integer number (503681280).

Almost surely, 2^5611322121 is an apocalyptic number.

It is an amenable number.

5611322121 is a deficient number, since it is larger than the sum of its proper divisors (2447578359).

5611322121 is a wasteful number, since it uses less digits than its factorization.

5611322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623396.

The product of its digits is 720, while the sum is 24.

The square root of 5611322121 is about 74908.7586400950. The cubic root of 5611322121 is about 1777.0039783777.

Adding to 5611322121 its reverse (1212231165), we get a palindrome (6823553286).

The spelling of 5611322121 in words is "five billion, six hundred eleven million, three hundred twenty-two thousand, one hundred twenty-one".