2111221222223 has 2 divisors, whose sum is σ = 2111221222224. Its totient is φ = 2111221222222.

The previous prime is 2111221222207. The next prime is 2111221222259. The reversal of 2111221222223 is 3222221221112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111221222223 - 2⁴ = 2111221222207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111221242223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055610611111 + 1055610611112.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610611112).

Almost surely, 2^{2111221222223} is an apocalyptic number.

2111221222223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111221222223 is an equidigital number, since it uses as much as digits as its factorization.

2111221222223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 23.

Adding to 2111221222223 its reverse (3222221221112), we get a palindrome (5333442443335).

The spelling of 2111221222223 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-three".