5111533221 has 4 divisors (see below), whose sum is σ = 6815377632. Its totient is φ = 3407688812.

The previous prime is 5111533117. The next prime is 5111533241. The reversal of 5111533221 is 1223351115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5111533221 - 2⁷ = 5111533093 is a prime.

It is a super-2 number, since 2×5111533221² = 52255543738773269682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5111533191 and 5111533200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111533241) 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 3 ways as a sum of consecutive naturals, for example, 851922201 + ... + 851922206.

It is an arithmetic number, because the mean of its divisors is an integer number (1703844408).

Almost surely, 2^5111533221 is an apocalyptic number.

It is an amenable number.

5111533221 is a deficient number, since it is larger than the sum of its proper divisors (1703844411).

5111533221 is a wasteful number, since it uses less digits than its factorization.

5111533221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703844410.

The product of its digits is 900, while the sum is 24.

The square root of 5111533221 is about 71494.9873837320. The cubic root of 5111533221 is about 1722.5971693923.

Adding to 5111533221 its reverse (1223351115), we get a palindrome (6334884336).

The spelling of 5111533221 in words is "five billion, one hundred eleven million, five hundred thirty-three thousand, two hundred twenty-one".