11121210199213 has 2 divisors, whose sum is σ = 11121210199214. Its totient is φ = 11121210199212.

The previous prime is 11121210199181. The next prime is 11121210199261. The reversal of 11121210199213 is 31299101212111.

It is a happy number.

11121210199213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9070806721284 + 2050403477929 = 3011778^2 + 1431923^2 .

It is an emirp because it is prime and its reverse (31299101212111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11121210199213 - 2⁵ = 11121210199181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121210199613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560605099606 + 5560605099607.

It is an arithmetic number, because the mean of its divisors is an integer number (5560605099607).

Almost surely, 2^{11121210199213} is an apocalyptic number.

It is an amenable number.

11121210199213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121210199213 is an equidigital number, since it uses as much as digits as its factorization.

11121210199213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 34.

The spelling of 11121210199213 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred ninety-nine thousand, two hundred thirteen".