5221011667 has 4 divisors (see below), whose sum is σ = 5228135200. Its totient is φ = 5213888136.

The previous prime is 5221011647. The next prime is 5221011671. The reversal of 5221011667 is 7661101225.

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

It is a cyclic number.

It is not a de Polignac number, because 5221011667 - 2¹⁵ = 5220978899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5221011637) 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, 3560667 + ... + 3562132.

It is an arithmetic number, because the mean of its divisors is an integer number (1307033800).

Almost surely, 2^5221011667 is an apocalyptic number.

5221011667 is a deficient number, since it is larger than the sum of its proper divisors (7123533).

5221011667 is an equidigital number, since it uses as much as digits as its factorization.

5221011667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123532.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5221011667 is about 72256.5683311905. The cubic root of 5221011667 is about 1734.8085526534.

The spelling of 5221011667 in words is "five billion, two hundred twenty-one million, eleven thousand, six hundred sixty-seven".