6993221071 has 4 divisors (see below), whose sum is σ = 6994501992. Its totient is φ = 6991940152.

The previous prime is 6993221017. The next prime is 6993221119. The reversal of 6993221071 is 1701223996.

6993221071 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.

It is a cyclic number.

It is not a de Polignac number, because 6993221071 - 2¹⁹ = 6992696783 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 (6993221471) 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, 632236 + ... + 643201.

It is an arithmetic number, because the mean of its divisors is an integer number (1748625498).

Almost surely, 2^6993221071 is an apocalyptic number.

6993221071 is a deficient number, since it is larger than the sum of its proper divisors (1280921).

6993221071 is a wasteful number, since it uses less digits than its factorization.

6993221071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280920.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 6993221071 is about 83625.4809911429. The cubic root of 6993221071 is about 1912.3134773937.

The spelling of 6993221071 in words is "six billion, nine hundred ninety-three million, two hundred twenty-one thousand, seventy-one".