13212223042211 has 4 divisors (see below), whose sum is σ = 13212496426152. Its totient is φ = 13211949658272.

The previous prime is 13212223042199. The next prime is 13212223042217. The reversal of 13212223042211 is 11224032221231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212223042211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212223042217) 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, 136619465 + ... + 136716138.

It is an arithmetic number, because the mean of its divisors is an integer number (3303124106538).

Almost surely, 2^{13212223042211} is an apocalyptic number.

13212223042211 is a deficient number, since it is larger than the sum of its proper divisors (273383941).

13212223042211 is an equidigital number, since it uses as much as digits as its factorization.

13212223042211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273383940.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13212223042211 its reverse (11224032221231), we get a palindrome (24436255263442).

The spelling of 13212223042211 in words is "thirteen trillion, two hundred twelve billion, two hundred twenty-three million, forty-two thousand, two hundred eleven".