13212110220111 has 48 divisors (see below), whose sum is σ = 21505355707680. Its totient is φ = 7745890325760.

The previous prime is 13212110220007. The next prime is 13212110220143. The reversal of 13212110220111 is 11102201121231.

It is a happy number.

13212110220111 is a `hidden beast` number, since 1 + 321 + 2 + 1 + 10 + 220 + 111 = 666.

It is not a de Polignac number, because 13212110220111 - 2¹³ = 13212110211919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212110220161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9790896 + ... + 11058293.

It is an arithmetic number, because the mean of its divisors is an integer number (448028243910).

Almost surely, 2^{13212110220111} is an apocalyptic number.

13212110220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13212110220111 is a deficient number, since it is larger than the sum of its proper divisors (8293245487569).

13212110220111 is a wasteful number, since it uses less digits than its factorization.

13212110220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20849416 (or 20849413 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 13212110220111 its reverse (11102201121231), we get a palindrome (24314311341342).

The spelling of 13212110220111 in words is "thirteen trillion, two hundred twelve billion, one hundred ten million, two hundred twenty thousand, one hundred eleven".