112220531 has 2 divisors, whose sum is σ = 112220532. Its totient is φ = 112220530.

The previous prime is 112220509. The next prime is 112220533. The reversal of 112220531 is 135022211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112220531 - 2²⁶ = 45111667 is a prime.

It is a super-2 number, since 2×112220531² = 25186895155843922, which contains 22 as substring.

Together with 112220533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112220533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110265 + 56110266.

It is an arithmetic number, because the mean of its divisors is an integer number (56110266).

Almost surely, 2^112220531 is an apocalyptic number.

112220531 is a deficient number, since it is larger than the sum of its proper divisors (1).

112220531 is an equidigital number, since it uses as much as digits as its factorization.

112220531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 112220531 is about 10593.4192308244. The cubic root of 112220531 is about 482.3446210562.

Adding to 112220531 its reverse (135022211), we get a palindrome (247242742).

The spelling of 112220531 in words is "one hundred twelve million, two hundred twenty thousand, five hundred thirty-one".