5611230350221 has 16 divisors (see below), whose sum is σ = 5649845726448. Its totient is φ = 5572724684800.

The previous prime is 5611230349981. The next prime is 5611230350261. The reversal of 5611230350221 is 1220530321165.

It can be written as a sum of positive squares in 8 ways, for example, as 159037321 + 5611071312900 = 12611^2 + 2368770^2 .

It is a cyclic number.

It is not a de Polignac number, because 5611230350221 - 2¹⁵ = 5611230317453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611230350261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358743561 + ... + 358759201.

It is an arithmetic number, because the mean of its divisors is an integer number (353115357903).

Almost surely, 2^{5611230350221} is an apocalyptic number.

It is an amenable number.

5611230350221 is a deficient number, since it is larger than the sum of its proper divisors (38615376227).

5611230350221 is a wasteful number, since it uses less digits than its factorization.

5611230350221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 5611230350221 its reverse (1220530321165), we get a palindrome (6831760671386).

The spelling of 5611230350221 in words is "five trillion, six hundred eleven billion, two hundred thirty million, three hundred fifty thousand, two hundred twenty-one".