13212120122211 has 32 divisors (see below), whose sum is σ = 17930143357696. Its totient is φ = 8651503728000.

The previous prime is 13212120122161. The next prime is 13212120122213. The reversal of 13212120122211 is 11222102121231.

It is not a de Polignac number, because 13212120122211 - 2⁶ = 13212120122147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13212120122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386901840 + ... + 386935986.

It is an arithmetic number, because the mean of its divisors is an integer number (560316979928).

Almost surely, 2^{13212120122211} is an apocalyptic number.

13212120122211 is a deficient number, since it is larger than the sum of its proper divisors (4718023235485).

13212120122211 is a wasteful number, since it uses less digits than its factorization.

13212120122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37123.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 13212120122211 its reverse (11222102121231), we get a palindrome (24434222243442).

The spelling of 13212120122211 in words is "thirteen trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".