112223621 has 2 divisors, whose sum is σ = 112223622. Its totient is φ = 112223620.

The previous prime is 112223599. The next prime is 112223623. The reversal of 112223621 is 126322211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 688900 = 10561^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 112223621 - 2¹⁴ = 112207237 is a prime.

It is a super-2 number, since 2×112223621² = 25188282220703282, which contains 22 as substring.

Together with 112223623, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112223593 and 112223602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112223623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56111810 + 56111811.

It is an arithmetic number, because the mean of its divisors is an integer number (56111811).

Almost surely, 2^112223621 is an apocalyptic number.

It is an amenable number.

112223621 is a deficient number, since it is larger than the sum of its proper divisors (1).

112223621 is an equidigital number, since it uses as much as digits as its factorization.

112223621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 112223621 is about 10593.5650750821. The cubic root of 112223621 is about 482.3490481463.

Adding to 112223621 its reverse (126322211), we get a palindrome (238545832).

The spelling of 112223621 in words is "one hundred twelve million, two hundred twenty-three thousand, six hundred twenty-one".