106220197 has 2 divisors, whose sum is σ = 106220198. Its totient is φ = 106220196.

The previous prime is 106220137. The next prime is 106220201. The reversal of 106220197 is 791022601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106213636 + 6561 = 10306^2 + 81^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106220197 is a prime.

It is a super-2 number, since 2×106220197² = 22565460501437618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106220137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53110098 + 53110099.

It is an arithmetic number, because the mean of its divisors is an integer number (53110099).

Almost surely, 2^106220197 is an apocalyptic number.

It is an amenable number.

106220197 is a deficient number, since it is larger than the sum of its proper divisors (1).

106220197 is an equidigital number, since it uses as much as digits as its factorization.

106220197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 106220197 is about 10306.3183048070. The cubic root of 106220197 is about 473.5898298474.

Adding to 106220197 its reverse (791022601), we get a palindrome (897242798).

The spelling of 106220197 in words is "one hundred six million, two hundred twenty thousand, one hundred ninety-seven".