13212005206 has 16 divisors (see below), whose sum is σ = 19863958464. Its totient is φ = 6590702664.

The previous prime is 13212005203. The next prime is 13212005239. The reversal of 13212005206 is 60250021231.

It is a super-2 number, since 2×13212005206² (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 (13212005203) 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, 2140681 + ... + 2146843.

It is an arithmetic number, because the mean of its divisors is an integer number (1241497404).

Almost surely, 2^13212005206 is an apocalyptic number.

13212005206 is a deficient number, since it is larger than the sum of its proper divisors (6651953258).

13212005206 is a wasteful number, since it uses less digits than its factorization.

13212005206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8475.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13212005206 its reverse (60250021231), we get a palindrome (73462026437).

The spelling of 13212005206 in words is "thirteen billion, two hundred twelve million, five thousand, two hundred six".