220118429 has 2 divisors, whose sum is σ = 220118430. Its totient is φ = 220118428.

The previous prime is 220118417. The next prime is 220118447. The reversal of 220118429 is 924811022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218241529 + 1876900 = 14773^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 220118429 - 2¹⁶ = 220052893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220118029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110059214 + 110059215.

It is an arithmetic number, because the mean of its divisors is an integer number (110059215).

Almost surely, 2^220118429 is an apocalyptic number.

It is an amenable number.

220118429 is a deficient number, since it is larger than the sum of its proper divisors (1).

220118429 is an equidigital number, since it uses as much as digits as its factorization.

220118429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 220118429 is about 14836.3886778421. The cubic root of 220118429 is about 603.7893774996.

The spelling of 220118429 in words is "two hundred twenty million, one hundred eighteen thousand, four hundred twenty-nine".