106422221 has 4 divisors (see below), whose sum is σ = 106453344. Its totient is φ = 106391100.

The previous prime is 106422187. The next prime is 106422223. The reversal of 106422221 is 122224601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122224601 = 179 ⋅682819.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106422221 is a prime.

It is a super-2 number, since 2×106422221² = 22651378245145682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106422193 and 106422202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106422223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9695 + ... + 17516.

It is an arithmetic number, because the mean of its divisors is an integer number (26613336).

Almost surely, 2^106422221 is an apocalyptic number.

It is an amenable number.

106422221 is a deficient number, since it is larger than the sum of its proper divisors (31123).

106422221 is an equidigital number, since it uses as much as digits as its factorization.

106422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31122.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 106422221 is about 10316.1146271259. The cubic root of 106422221 is about 473.8898855230.

Adding to 106422221 its reverse (122224601), we get a palindrome (228646822).

The spelling of 106422221 in words is "one hundred six million, four hundred twenty-two thousand, two hundred twenty-one".