106221103 has 2 divisors, whose sum is σ = 106221104. Its totient is φ = 106221102.

The previous prime is 106221053. The next prime is 106221121. The reversal of 106221103 is 301122601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106221103 is a prime.

It is a super-2 number, since 2×106221103² = 22565845445073218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106221133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53110551 + 53110552.

It is an arithmetic number, because the mean of its divisors is an integer number (53110552).

Almost surely, 2^106221103 is an apocalyptic number.

106221103 is a deficient number, since it is larger than the sum of its proper divisors (1).

106221103 is an equidigital number, since it uses as much as digits as its factorization.

106221103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 106221103 is about 10306.3622583334. The cubic root of 106221103 is about 473.5911763307.

Adding to 106221103 its reverse (301122601), we get a palindrome (407343704).

The spelling of 106221103 in words is "one hundred six million, two hundred twenty-one thousand, one hundred three".