2221221103 has 2 divisors, whose sum is σ = 2221221104. Its totient is φ = 2221221102.

The previous prime is 2221221091. The next prime is 2221221127. The reversal of 2221221103 is 3011221222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221221103 - 2⁹ = 2221220591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221221133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110610551 + 1110610552.

It is an arithmetic number, because the mean of its divisors is an integer number (1110610552).

Almost surely, 2^2221221103 is an apocalyptic number.

2221221103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221221103 is an equidigital number, since it uses as much as digits as its factorization.

2221221103 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.

The square root of 2221221103 is about 47129.8324100564. The cubic root of 2221221103 is about 1304.7598884926.

Adding to 2221221103 its reverse (3011221222), we get a palindrome (5232442325).

The spelling of 2221221103 in words is "two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred three".