111223023021211 has 2 divisors, whose sum is σ = 111223023021212. Its totient is φ = 111223023021210.

The previous prime is 111223023021179. The next prime is 111223023021239. The reversal of 111223023021211 is 112120320322111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111223023021211 - 2⁵ = 111223023021179 is a prime.

It is not a weakly prime, because it can be changed into another prime (111223023021811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611511510605 + 55611511510606.

It is an arithmetic number, because the mean of its divisors is an integer number (55611511510606).

Almost surely, 2^{111223023021211} is an apocalyptic number.

111223023021211 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223023021211 is an equidigital number, since it uses as much as digits as its factorization.

111223023021211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111223023021211 its reverse (112120320322111), we get a palindrome (223343343343322).

The spelling of 111223023021211 in words is "one hundred eleven trillion, two hundred twenty-three billion, twenty-three million, twenty-one thousand, two hundred eleven".