5021106221 has 4 divisors (see below), whose sum is σ = 5089888572. Its totient is φ = 4952323872.

The previous prime is 5021106143. The next prime is 5021106283. The reversal of 5021106221 is 1226011205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 926898025 + 4094208196 = 30445^2 + 63986^2 .

It is a cyclic number.

It is not a de Polignac number, because 5021106221 - 2¹⁰ = 5021105197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5021106193 and 5021106202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021106121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34391066 + ... + 34391211.

It is an arithmetic number, because the mean of its divisors is an integer number (1272472143).

Almost surely, 2^5021106221 is an apocalyptic number.

It is an amenable number.

5021106221 is a deficient number, since it is larger than the sum of its proper divisors (68782351).

5021106221 is an equidigital number, since it uses as much as digits as its factorization.

5021106221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68782350.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5021106221 is about 70859.7644718073. The cubic root of 5021106221 is about 1712.3786443991.

Adding to 5021106221 its reverse (1226011205), we get a palindrome (6247117426).

The spelling of 5021106221 in words is "five billion, twenty-one million, one hundred six thousand, two hundred twenty-one".