13522172205 has 8 divisors (see below), whose sum is σ = 21635475552. Its totient is φ = 7211825168.

The previous prime is 13522172201. The next prime is 13522172221. The reversal of 13522172205 is 50227122531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13522172205 - 2² = 13522172201 is a prime.

It is a super-2 number, since 2×13522172205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13522172201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450739059 + ... + 450739088.

It is an arithmetic number, because the mean of its divisors is an integer number (2704434444).

Almost surely, 2^13522172205 is an apocalyptic number.

13522172205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13522172205 is a deficient number, since it is larger than the sum of its proper divisors (8113303347).

13522172205 is an equidigital number, since it uses as much as digits as its factorization.

13522172205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901478155.

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 13522172205 its reverse (50227122531), we get a palindrome (63749294736).

The spelling of 13522172205 in words is "thirteen billion, five hundred twenty-two million, one hundred seventy-two thousand, two hundred five".