112231521 has 32 divisors (see below), whose sum is σ = 171239040. Its totient is φ = 72619200.

The previous prime is 112231489. The next prime is 112231541. The reversal of 112231521 is 125132211.

112231521 is a `hidden beast` number, since 112 + 2 + 31 + 521 = 666.

It is not a de Polignac number, because 112231521 - 2⁵ = 112231489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112231494 and 112231503.

It is not an unprimeable number, because it can be changed into a prime (112231541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136291 + ... + 137111.

It is an arithmetic number, because the mean of its divisors is an integer number (5351220).

Almost surely, 2^112231521 is an apocalyptic number.

It is an amenable number.

112231521 is a deficient number, since it is larger than the sum of its proper divisors (59007519).

112231521 is an equidigital number, since it uses as much as digits as its factorization.

112231521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 968 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 112231521 is about 10593.9379363861. The cubic root of 112231521 is about 482.3603662272.

Adding to 112231521 its reverse (125132211), we get a palindrome (237363732).

The spelling of 112231521 in words is "one hundred twelve million, two hundred thirty-one thousand, five hundred twenty-one".