111220121222167 has 2 divisors, whose sum is σ = 111220121222168. Its totient is φ = 111220121222166.

The previous prime is 111220121222053. The next prime is 111220121222191. The reversal of 111220121222167 is 761222121022111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111220121222167 - 2²³ = 111220112833559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111220121222767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610060611083 + 55610060611084.

It is an arithmetic number, because the mean of its divisors is an integer number (55610060611084).

Almost surely, 2^{111220121222167} is an apocalyptic number.

111220121222167 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220121222167 is an equidigital number, since it uses as much as digits as its factorization.

111220121222167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 111220121222167 its reverse (761222121022111), we get a palindrome (872442242244278).

The spelling of 111220121222167 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred sixty-seven".