111220202221049 has 2 divisors, whose sum is σ = 111220202221050. Its totient is φ = 111220202221048.

The previous prime is 111220202221021. The next prime is 111220202221099. The reversal of 111220202221049 is 940122202022111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87076295035024 + 24143907186025 = 9331468^2 + 4913645^2 .

It is an emirp because it is prime and its reverse (940122202022111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111220202221049 - 2²⁰ = 111220201172473 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 (111220202221099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610101110524 + 55610101110525.

It is an arithmetic number, because the mean of its divisors is an integer number (55610101110525).

Almost surely, 2^{111220202221049} is an apocalyptic number.

It is an amenable number.

111220202221049 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220202221049 is an equidigital number, since it uses as much as digits as its factorization.

111220202221049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 111220202221049 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred two million, two hundred twenty-one thousand, forty-nine".