111222002020201 has 2 divisors, whose sum is σ = 111222002020202. Its totient is φ = 111222002020200.

The previous prime is 111222002020193. The next prime is 111222002020219. The reversal of 111222002020201 is 102020200222111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105496625034025 + 5725376986176 = 10271155^2 + 2392776^2 .

It is an emirp because it is prime and its reverse (102020200222111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111222002020201 - 2³ = 111222002020193 is a prime.

It is not a weakly prime, because it can be changed into another prime (111222002000201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611001010100 + 55611001010101.

It is an arithmetic number, because the mean of its divisors is an integer number (55611001010101).

Almost surely, 2^{111222002020201} is an apocalyptic number.

It is an amenable number.

111222002020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222002020201 is an equidigital number, since it uses as much as digits as its factorization.

111222002020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111222002020201 its reverse (102020200222111), we get a palindrome (213242202242312).

The spelling of 111222002020201 in words is "one hundred eleven trillion, two hundred twenty-two billion, two million, twenty thousand, two hundred one".