11221222212223 has 2 divisors, whose sum is σ = 11221222212224. Its totient is φ = 11221222212222.

The previous prime is 11221222212133. The next prime is 11221222212251. The reversal of 11221222212223 is 32221222212211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221222212223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221222212253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610611106111 + 5610611106112.

It is an arithmetic number, because the mean of its divisors is an integer number (5610611106112).

Almost surely, 2^{11221222212223} is an apocalyptic number.

11221222212223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221222212223 is an equidigital number, since it uses as much as digits as its factorization.

11221222212223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 25.

Adding to 11221222212223 its reverse (32221222212211), we get a palindrome (43442444424434).

The spelling of 11221222212223 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-three".