111220110100189 has 2 divisors, whose sum is σ = 111220110100190. Its totient is φ = 111220110100188.

The previous prime is 111220110100139. The next prime is 111220110100259. The reversal of 111220110100189 is 981001011022111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99172060839289 + 12048049260900 = 9958517^2 + 3471030^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220110100189 - 2¹⁵ = 111220110067421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111220110100139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610055050094 + 55610055050095.

It is an arithmetic number, because the mean of its divisors is an integer number (55610055050095).

Almost surely, 2^{111220110100189} is an apocalyptic number.

It is an amenable number.

111220110100189 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220110100189 is an equidigital number, since it uses as much as digits as its factorization.

111220110100189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 28.

The spelling of 111220110100189 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred ten million, one hundred thousand, one hundred eighty-nine".