223213111111 has 2 divisors, whose sum is σ = 223213111112. Its totient is φ = 223213111110.

The previous prime is 223213111067. The next prime is 223213111117. The reversal of 223213111111 is 111111312322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223213111111 - 2²⁵ = 223179556679 is a prime.

It is a super-3 number, since 3×223213111111³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223213111117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111606555555 + 111606555556.

It is an arithmetic number, because the mean of its divisors is an integer number (111606555556).

Almost surely, 2^223213111111 is an apocalyptic number.

223213111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

223213111111 is an equidigital number, since it uses as much as digits as its factorization.

223213111111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 19.

Adding to 223213111111 its reverse (111111312322), we get a palindrome (334324423433).

The spelling of 223213111111 in words is "two hundred twenty-three billion, two hundred thirteen million, one hundred eleven thousand, one hundred eleven".