13212120002111 has 4 divisors (see below), whose sum is σ = 13235017957632. Its totient is φ = 13189222046592.

The previous prime is 13212120002089. The next prime is 13212120002141. The reversal of 13212120002111 is 11120002121231.

It is a happy number.

13212120002111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13212120002111 - 2¹⁸ = 13212119739967 is a prime.

It is a super-2 number, since 2×13212120002111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13212120002111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212120002141) 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, 11448976895 + ... + 11448978048.

It is an arithmetic number, because the mean of its divisors is an integer number (3308754489408).

Almost surely, 2^{13212120002111} is an apocalyptic number.

13212120002111 is a deficient number, since it is larger than the sum of its proper divisors (22897955521).

13212120002111 is an equidigital number, since it uses as much as digits as its factorization.

13212120002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22897955520.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 13212120002111 its reverse (11120002121231), we get a palindrome (24332122123342).

The spelling of 13212120002111 in words is "thirteen trillion, two hundred twelve billion, one hundred twenty million, two thousand, one hundred eleven".