1421222203 has 2 divisors, whose sum is σ = 1421222204. Its totient is φ = 1421222202.

The previous prime is 1421222191. The next prime is 1421222261. The reversal of 1421222203 is 3022221241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421222203 - 2¹⁷ = 1421091131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421222263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710611101 + 710611102.

It is an arithmetic number, because the mean of its divisors is an integer number (710611102).

Almost surely, 2^1421222203 is an apocalyptic number.

1421222203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421222203 is an equidigital number, since it uses as much as digits as its factorization.

1421222203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1421222203 is about 37699.1008248207. The cubic root of 1421222203 is about 1124.3132474933.

Adding to 1421222203 its reverse (3022221241), we get a palindrome (4443443444).

The spelling of 1421222203 in words is "one billion, four hundred twenty-one million, two hundred twenty-two thousand, two hundred three".