111012221212289 has 2 divisors, whose sum is σ = 111012221212290. Its totient is φ = 111012221212288.

The previous prime is 111012221212157. The next prime is 111012221212331. The reversal of 111012221212289 is 982212122210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58365703665025 + 52646517547264 = 7639745^2 + 7255792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012221212289 is a prime.

It is not a weakly prime, because it can be changed into another prime (111012221212889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506110606144 + 55506110606145.

It is an arithmetic number, because the mean of its divisors is an integer number (55506110606145).

Almost surely, 2^{111012221212289} is an apocalyptic number.

It is an amenable number.

111012221212289 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012221212289 is an equidigital number, since it uses as much as digits as its factorization.

111012221212289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 35.

The spelling of 111012221212289 in words is "one hundred eleven trillion, twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred eighty-nine".