220223197 has 2 divisors, whose sum is σ = 220223198. Its totient is φ = 220223196.

The previous prime is 220223173. The next prime is 220223231. The reversal of 220223197 is 791322022.

220223197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219365721 + 857476 = 14811^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 220223197 - 2¹¹ = 220221149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220223147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111598 + 110111599.

It is an arithmetic number, because the mean of its divisors is an integer number (110111599).

Almost surely, 2^220223197 is an apocalyptic number.

It is an amenable number.

220223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

220223197 is an equidigital number, since it uses as much as digits as its factorization.

220223197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 220223197 is about 14839.9190361673. The cubic root of 220223197 is about 603.8851558984.

The spelling of 220223197 in words is "two hundred twenty million, two hundred twenty-three thousand, one hundred ninety-seven".