30172220071 has 16 divisors (see below), whose sum is σ = 34746682176. Its totient is φ = 25663931136.

The previous prime is 30172220053. The next prime is 30172220147. The reversal of 30172220071 is 17002227103.

It is a cyclic number.

It is not a de Polignac number, because 30172220071 - 2¹⁹ = 30171695783 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 (30172220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4865745 + ... + 4871941.

It is an arithmetic number, because the mean of its divisors is an integer number (2171667636).

Almost surely, 2^30172220071 is an apocalyptic number.

30172220071 is a deficient number, since it is larger than the sum of its proper divisors (4574462105).

30172220071 is a wasteful number, since it uses less digits than its factorization.

30172220071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11418.

The product of its (nonzero) digits is 1176, while the sum is 25.

Adding to 30172220071 its reverse (17002227103), we get a palindrome (47174447174).

The spelling of 30172220071 in words is "thirty billion, one hundred seventy-two million, two hundred twenty thousand, seventy-one".