112028821 has 2 divisors, whose sum is σ = 112028822. Its totient is φ = 112028820.

The previous prime is 112028809. The next prime is 112028831. The reversal of 112028821 is 128820211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106316721 + 5712100 = 10311^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 112028821 - 2¹⁷ = 111897749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112028831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56014410 + 56014411.

It is an arithmetic number, because the mean of its divisors is an integer number (56014411).

Almost surely, 2^112028821 is an apocalyptic number.

It is an amenable number.

112028821 is a deficient number, since it is larger than the sum of its proper divisors (1).

112028821 is an equidigital number, since it uses as much as digits as its factorization.

112028821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 112028821 is about 10584.3668209298. The cubic root of 112028821 is about 482.0697961403.

The spelling of 112028821 in words is "one hundred twelve million, twenty-eight thousand, eight hundred twenty-one".