5066221021 has 4 divisors (see below), whose sum is σ = 5072347872. Its totient is φ = 5060094172.

The previous prime is 5066221019. The next prime is 5066221031. The reversal of 5066221021 is 1201226605.

5066221021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1201226605 = 5 ⋅240245321.

It is a cyclic number.

It is not a de Polignac number, because 5066221021 - 2¹ = 5066221019 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 (5066221001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062185 + ... + 3063838.

It is an arithmetic number, because the mean of its divisors is an integer number (1268086968).

Almost surely, 2^5066221021 is an apocalyptic number.

It is an amenable number.

5066221021 is a deficient number, since it is larger than the sum of its proper divisors (6126851).

5066221021 is an equidigital number, since it uses as much as digits as its factorization.

5066221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126850.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5066221021 is about 71177.3912208083. The cubic root of 5066221021 is about 1717.4919527247.

Adding to 5066221021 its reverse (1201226605), we get a palindrome (6267447626).

The spelling of 5066221021 in words is "five billion, sixty-six million, two hundred twenty-one thousand, twenty-one".