5221066944091 has 4 divisors (see below), whose sum is σ = 5226180624784. Its totient is φ = 5215953263400.

The previous prime is 5221066943971. The next prime is 5221066944101. The reversal of 5221066944091 is 1904496601225.

It is a happy number.

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 5221066944091 - 2¹¹ = 5221066942043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5221066948091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556838815 + ... + 2556840856.

It is an arithmetic number, because the mean of its divisors is an integer number (1306545156196).

Almost surely, 2^{5221066944091} is an apocalyptic number.

5221066944091 is a deficient number, since it is larger than the sum of its proper divisors (5113680693).

5221066944091 is a wasteful number, since it uses less digits than its factorization.

5221066944091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113680692.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 5221066944091 in words is "five trillion, two hundred twenty-one billion, sixty-six million, nine hundred forty-four thousand, ninety-one".