13212212501 has 8 divisors (see below), whose sum is σ = 13252180800. Its totient is φ = 13172271840.

The previous prime is 13212212491. The next prime is 13212212509. The reversal of 13212212501 is 10521221231.

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 13212212501 - 2²⁶ = 13145103637 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 (13212212509) 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, 1325705 + ... + 1335633.

It is an arithmetic number, because the mean of its divisors is an integer number (1656522600).

Almost surely, 2^13212212501 is an apocalyptic number.

It is an amenable number.

13212212501 is a deficient number, since it is larger than the sum of its proper divisors (39968299).

13212212501 is an equidigital number, since it uses as much as digits as its factorization.

13212212501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13819.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 13212212501 its reverse (10521221231), we get a palindrome (23733433732).

The spelling of 13212212501 in words is "thirteen billion, two hundred twelve million, two hundred twelve thousand, five hundred one".