220110111121129 has 2 divisors, whose sum is σ = 220110111121130. Its totient is φ = 220110111121128.

The previous prime is 220110111121057. The next prime is 220110111121213. The reversal of 220110111121129 is 921121111011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188604847289104 + 31505263832025 = 13733348^2 + 5612955^2 .

It is a cyclic number.

It is not a de Polignac number, because 220110111121129 - 2⁹ = 220110111120617 is a prime.

It is a super-2 number, since 2×220110111121129² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220110111121729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110055055560564 + 110055055560565.

It is an arithmetic number, because the mean of its divisors is an integer number (110055055560565).

Almost surely, 2^{220110111121129} is an apocalyptic number.

It is an amenable number.

220110111121129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220110111121129 is an equidigital number, since it uses as much as digits as its factorization.

220110111121129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 220110111121129 in words is "two hundred twenty trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-nine".