112220232231221 has 2 divisors, whose sum is σ = 112220232231222. Its totient is φ = 112220232231220.

The previous prime is 112220232231143. The next prime is 112220232231227. The reversal of 112220232231221 is 122132232022211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68846614432996 + 43373617798225 = 8297386^2 + 6585865^2 .

It is a cyclic number.

It is not a de Polignac number, because 112220232231221 - 2¹⁴ = 112220232214837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112220232231227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110116115610 + 56110116115611.

It is an arithmetic number, because the mean of its divisors is an integer number (56110116115611).

Almost surely, 2^{112220232231221} is an apocalyptic number.

It is an amenable number.

112220232231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112220232231221 is an equidigital number, since it uses as much as digits as its factorization.

112220232231221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 112220232231221 its reverse (122132232022211), we get a palindrome (234352464253432).

The spelling of 112220232231221 in words is "one hundred twelve trillion, two hundred twenty billion, two hundred thirty-two million, two hundred thirty-one thousand, two hundred twenty-one".