220338197 has 2 divisors, whose sum is σ = 220338198. Its totient is φ = 220338196.

The previous prime is 220338121. The next prime is 220338203. The reversal of 220338197 is 791833022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209931121 + 10407076 = 14489^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 220338197 - 2²⁶ = 153229333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220338697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110169098 + 110169099.

It is an arithmetic number, because the mean of its divisors is an integer number (110169099).

Almost surely, 2^220338197 is an apocalyptic number.

It is an amenable number.

220338197 is a deficient number, since it is larger than the sum of its proper divisors (1).

220338197 is an equidigital number, since it uses as much as digits as its factorization.

220338197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 220338197 is about 14843.7932146739. The cubic root of 220338197 is about 603.9902533769.

The spelling of 220338197 in words is "two hundred twenty million, three hundred thirty-eight thousand, one hundred ninety-seven".