112420921 has 2 divisors, whose sum is σ = 112420922. Its totient is φ = 112420920.

The previous prime is 112420873. The next prime is 112420951. The reversal of 112420921 is 129024211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104775696 + 7645225 = 10236^2 + 2765^2 .

It is a cyclic number.

It is not a de Polignac number, because 112420921 - 2⁹ = 112420409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112420892 and 112420901.

It is not a weakly prime, because it can be changed into another prime (112420951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56210460 + 56210461.

It is an arithmetic number, because the mean of its divisors is an integer number (56210461).

Almost surely, 2^112420921 is an apocalyptic number.

It is an amenable number.

112420921 is a deficient number, since it is larger than the sum of its proper divisors (1).

112420921 is an equidigital number, since it uses as much as digits as its factorization.

112420921 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.

The square root of 112420921 is about 10602.8732426640. The cubic root of 112420921 is about 482.6315547747.

The spelling of 112420921 in words is "one hundred twelve million, four hundred twenty thousand, nine hundred twenty-one".