11112212321201 has 2 divisors, whose sum is σ = 11112212321202. Its totient is φ = 11112212321200.

The previous prime is 11112212321183. The next prime is 11112212321209. The reversal of 11112212321201 is 10212321221111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8092454636176 + 3019757685025 = 2844724^2 + 1737745^2 .

It is an emirp because it is prime and its reverse (10212321221111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11112212321201 - 2¹⁸ = 11112212059057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11112212321209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556106160600 + 5556106160601.

It is an arithmetic number, because the mean of its divisors is an integer number (5556106160601).

Almost surely, 2^{11112212321201} is an apocalyptic number.

It is an amenable number.

11112212321201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112212321201 is an equidigital number, since it uses as much as digits as its factorization.

11112212321201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11112212321201 its reverse (10212321221111), we get a palindrome (21324533542312).

The spelling of 11112212321201 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, three hundred twenty-one thousand, two hundred one".