112013123221 has 2 divisors, whose sum is σ = 112013123222. Its totient is φ = 112013123220.

The previous prime is 112013123219. The next prime is 112013123231. The reversal of 112013123221 is 122321310211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57835440100 + 54177683121 = 240490^2 + 232761^2 .

It is a cyclic number.

It is not a de Polignac number, because 112013123221 - 2¹ = 112013123219 is a prime.

Together with 112013123219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112013123231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006561610 + 56006561611.

It is an arithmetic number, because the mean of its divisors is an integer number (56006561611).

Almost surely, 2^112013123221 is an apocalyptic number.

It is an amenable number.

112013123221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112013123221 is an equidigital number, since it uses as much as digits as its factorization.

112013123221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 112013123221 its reverse (122321310211), we get a palindrome (234334433432).

The spelling of 112013123221 in words is "one hundred twelve billion, thirteen million, one hundred twenty-three thousand, two hundred twenty-one".