106313221 has 12 divisors (see below), whose sum is σ = 123623392. Its totient is φ = 89560584.

The previous prime is 106313219. The next prime is 106313293. The reversal of 106313221 is 122313601.

It is not a de Polignac number, because 106313221 - 2¹ = 106313219 is a prime.

It is a super-2 number, since 2×106313221² = 22605001918789682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106317221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22186 + ... + 26548.

Almost surely, 2^106313221 is an apocalyptic number.

It is an amenable number.

106313221 is a deficient number, since it is larger than the sum of its proper divisors (17310171).

106313221 is an frugal number, since it uses more digits than its factorization.

106313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488 (or 4429 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 106313221 is about 10310.8302769467. The cubic root of 106313221 is about 473.7280407437.

Adding to 106313221 its reverse (122313601), we get a palindrome (228626822).

The spelling of 106313221 in words is "one hundred six million, three hundred thirteen thousand, two hundred twenty-one".