112202021 has 2 divisors, whose sum is σ = 112202022. Its totient is φ = 112202020.

The previous prime is 112202009. The next prime is 112202047. The reversal of 112202021 is 120202211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86304100 + 25897921 = 9290^2 + 5089^2 .

It is a cyclic number.

It is not a de Polignac number, because 112202021 - 2¹⁴ = 112185637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112201993 and 112202011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112202221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56101010 + 56101011.

It is an arithmetic number, because the mean of its divisors is an integer number (56101011).

Almost surely, 2^112202021 is an apocalyptic number.

It is an amenable number.

112202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112202021 is an equidigital number, since it uses as much as digits as its factorization.

112202021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 112202021 is about 10592.5455391988. The cubic root of 112202021 is about 482.3180997956.

Adding to 112202021 its reverse (120202211), we get a palindrome (232404232).

The spelling of 112202021 in words is "one hundred twelve million, two hundred two thousand, twenty-one".