220323220129 has 2 divisors, whose sum is σ = 220323220130. Its totient is φ = 220323220128.

The previous prime is 220323220099. The next prime is 220323220147. The reversal of 220323220129 is 921022323022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197445145104 + 22878075025 = 444348^2 + 151255^2 .

It is a cyclic number.

It is not a de Polignac number, because 220323220129 - 2¹¹ = 220323218081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220323220097 and 220323220106.

It is not a weakly prime, because it can be changed into another prime (220323226129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110161610064 + 110161610065.

It is an arithmetic number, because the mean of its divisors is an integer number (110161610065).

Almost surely, 2^220323220129 is an apocalyptic number.

It is an amenable number.

220323220129 is a deficient number, since it is larger than the sum of its proper divisors (1).

220323220129 is an equidigital number, since it uses as much as digits as its factorization.

220323220129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 220323220129 in words is "two hundred twenty billion, three hundred twenty-three million, two hundred twenty thousand, one hundred twenty-nine".