112212013 has 4 divisors (see below), whose sum is σ = 112486780. Its totient is φ = 111937248.

The previous prime is 112212007. The next prime is 112212017. The reversal of 112212013 is 310212211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105226564 + 6985449 = 10258^2 + 2643^2 .

It is a cyclic number.

It is not a de Polignac number, because 112212013 - 2⁹ = 112211501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112211984 and 112212002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136770 + ... + 137587.

It is an arithmetic number, because the mean of its divisors is an integer number (28121695).

Almost surely, 2^112212013 is an apocalyptic number.

It is an amenable number.

112212013 is a deficient number, since it is larger than the sum of its proper divisors (274767).

112212013 is an equidigital number, since it uses as much as digits as its factorization.

112212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274766.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 112212013 is about 10593.0171811434. The cubic root of 112212013 is about 482.3324167670.

Adding to 112212013 its reverse (310212211), we get a palindrome (422424224).

The spelling of 112212013 in words is "one hundred twelve million, two hundred twelve thousand, thirteen".