1228210163 has 2 divisors, whose sum is σ = 1228210164. Its totient is φ = 1228210162.

The previous prime is 1228210121. The next prime is 1228210171. The reversal of 1228210163 is 3610128221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228210163 - 2⁶ = 1228210099 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1228210463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614105081 + 614105082.

It is an arithmetic number, because the mean of its divisors is an integer number (614105082).

Almost surely, 2^1228210163 is an apocalyptic number.

1228210163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228210163 is an equidigital number, since it uses as much as digits as its factorization.

1228210163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1228210163 is about 35045.8294665713. The cubic root of 1228210163 is about 1070.9213140906.

Adding to 1228210163 its reverse (3610128221), we get a palindrome (4838338384).

The spelling of 1228210163 in words is "one billion, two hundred twenty-eight million, two hundred ten thousand, one hundred sixty-three".