416102221 has 2 divisors, whose sum is σ = 416102222. Its totient is φ = 416102220.

The previous prime is 416102213. The next prime is 416102231. The reversal of 416102221 is 122201614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 338044996 + 78057225 = 18386^2 + 8835^2 .

It is a cyclic number.

It is not a de Polignac number, because 416102221 - 2³ = 416102213 is a prime.

It is a super-2 number, since 2×416102221² = 346282116642265682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416102201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208051110 + 208051111.

It is an arithmetic number, because the mean of its divisors is an integer number (208051111).

Almost surely, 2^416102221 is an apocalyptic number.

It is an amenable number.

416102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

416102221 is an equidigital number, since it uses as much as digits as its factorization.

416102221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 416102221 is about 20398.5837988817. The cubic root of 416102221 is about 746.5633707506.

Adding to 416102221 its reverse (122201614), we get a palindrome (538303835).

The spelling of 416102221 in words is "four hundred sixteen million, one hundred two thousand, two hundred twenty-one".