1220221210003 has 2 divisors, whose sum is σ = 1220221210004. Its totient is φ = 1220221210002.

The previous prime is 1220221209971. The next prime is 1220221210081. The reversal of 1220221210003 is 3000121220221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220221210003 - 2⁵ = 1220221209971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220221217003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110605001 + 610110605002.

It is an arithmetic number, because the mean of its divisors is an integer number (610110605002).

Almost surely, 2^{1220221210003} is an apocalyptic number.

1220221210003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220221210003 is an equidigital number, since it uses as much as digits as its factorization.

1220221210003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220221210003 its reverse (3000121220221), we get a palindrome (4220342430224).

The spelling of 1220221210003 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, three".