106022221 has 2 divisors, whose sum is σ = 106022222. Its totient is φ = 106022220.

The previous prime is 106022197. The next prime is 106022239. The reversal of 106022221 is 122220601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68641225 + 37380996 = 8285^2 + 6114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106022221 is a prime.

It is a super-2 number, since 2×106022221² = 22481422691545682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106022195 and 106022204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106022281) 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, 53011110 + 53011111.

It is an arithmetic number, because the mean of its divisors is an integer number (53011111).

Almost surely, 2^106022221 is an apocalyptic number.

It is an amenable number.

106022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

106022221 is an equidigital number, since it uses as much as digits as its factorization.

106022221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 106022221 is about 10296.7092315943. The cubic root of 106022221 is about 473.2954171286.

Adding to 106022221 its reverse (122220601), we get a palindrome (228242822).

The spelling of 106022221 in words is "one hundred six million, twenty-two thousand, two hundred twenty-one".