11200121209213 has 2 divisors, whose sum is σ = 11200121209214. Its totient is φ = 11200121209212.

The previous prime is 11200121209163. The next prime is 11200121209237. The reversal of 11200121209213 is 31290212100211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8883749835844 + 2316371373369 = 2980562^2 + 1521963^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200121209213 - 2³⁷ = 11062682255741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11200121209283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600060604606 + 5600060604607.

It is an arithmetic number, because the mean of its divisors is an integer number (5600060604607).

Almost surely, 2^{11200121209213} is an apocalyptic number.

It is an amenable number.

11200121209213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200121209213 is an equidigital number, since it uses as much as digits as its factorization.

11200121209213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 11200121209213 its reverse (31290212100211), we get a palindrome (42490333309424).

The spelling of 11200121209213 in words is "eleven trillion, two hundred billion, one hundred twenty-one million, two hundred nine thousand, two hundred thirteen".