1111221222203 has 2 divisors, whose sum is σ = 1111221222204. Its totient is φ = 1111221222202.

The previous prime is 1111221222193. The next prime is 1111221222217. The reversal of 1111221222203 is 3022221221111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111221222203 - 2²⁸ = 1110952786747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111221222283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555610611101 + 555610611102.

It is an arithmetic number, because the mean of its divisors is an integer number (555610611102).

Almost surely, 2^{1111221222203} is an apocalyptic number.

1111221222203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111221222203 is an equidigital number, since it uses as much as digits as its factorization.

1111221222203 is an evil number, because the sum of its binary digits is even.

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

Adding to 1111221222203 its reverse (3022221221111), we get a palindrome (4133442443314).

The spelling of 1111221222203 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred three".