1210218203 has 2 divisors, whose sum is σ = 1210218204. Its totient is φ = 1210218202.

The previous prime is 1210218131. The next prime is 1210218221. The reversal of 1210218203 is 3028120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210218203 - 2¹² = 1210214107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210218283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605109101 + 605109102.

It is an arithmetic number, because the mean of its divisors is an integer number (605109102).

Almost surely, 2^1210218203 is an apocalyptic number.

1210218203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210218203 is an equidigital number, since it uses as much as digits as its factorization.

1210218203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1210218203 is about 34788.1905680649. The cubic root of 1210218203 is about 1065.6662873532. Note that the first 3 decimals are identical.

Adding to 1210218203 its reverse (3028120121), we get a palindrome (4238338324).

The spelling of 1210218203 in words is "one billion, two hundred ten million, two hundred eighteen thousand, two hundred three".