111221101121063 has 2 divisors, whose sum is σ = 111221101121064. Its totient is φ = 111221101121062.

The previous prime is 111221101120993. The next prime is 111221101121069. The reversal of 111221101121063 is 360121101122111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111221101121063 - 2¹⁶ = 111221101055527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111221101121069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610550560531 + 55610550560532.

It is an arithmetic number, because the mean of its divisors is an integer number (55610550560532).

Almost surely, 2^{111221101121063} is an apocalyptic number.

111221101121063 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221101121063 is an equidigital number, since it uses as much as digits as its factorization.

111221101121063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 111221101121063 its reverse (360121101122111), we get a palindrome (471342202243174).

The spelling of 111221101121063 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, sixty-three".