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10222231 is a prime number
BaseRepresentation
bin100110111111…
…101010010111
3201020100021011
4212333222113
510104102411
61003033051
7152613265
oct46775227
921210234
1010222231
115852128
12350b787
13216ba76
141501435
15d6dc21
hex9bfa97

10222231 has 2 divisors, whose sum is σ = 10222232. Its totient is φ = 10222230.

The previous prime is 10222229. The next prime is 10222279. The reversal of 10222231 is 13222201.

Adding to 10222231 its reverse (13222201), we get a palindrome (23444432).

It is a weak prime.

It is an emirp because it is prime and its reverse (13222201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10222231 - 21 = 10222229 is a prime.

It is a super-2 number, since 2×102222312 = 208988013234722, which contains 22 as substring.

Together with 10222229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10222211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111115 + 5111116.

It is an arithmetic number, because the mean of its divisors is an integer number (5111116).

Almost surely, 210222231 is an apocalyptic number.

10222231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222231 is an equidigital number, since it uses as much as digits as its factorization.

10222231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10222231 is about 3197.2223882614. Note that the first 3 decimals coincide. The cubic root of 10222231 is about 217.0277311711.

The spelling of 10222231 in words is "ten million, two hundred twenty-two thousand, two hundred thirty-one".