2111221103 has 2 divisors, whose sum is σ = 2111221104. Its totient is φ = 2111221102.

The previous prime is 2111221097. The next prime is 2111221127. The reversal of 2111221103 is 3011221112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111221103 - 2¹² = 2111217007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111221193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055610551 + 1055610552.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610552).

Almost surely, 2^2111221103 is an apocalyptic number.

2111221103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111221103 is an equidigital number, since it uses as much as digits as its factorization.

2111221103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111221103 is about 45948.0261055902. The cubic root of 2111221103 is about 1282.8559891918.

Adding to 2111221103 its reverse (3011221112), we get a palindrome (5122442215).

Subtracting 2111221103 from its reverse (3011221112), we obtain a palindrome (900000009).

The spelling of 2111221103 in words is "two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred three".