112213001 has 4 divisors (see below), whose sum is σ = 113032212. Its totient is φ = 111393792.

The previous prime is 112212979. The next prime is 112213019. The reversal of 112213001 is 100312211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100312211 = 4951 ⋅20261.

It can be written as a sum of positive squares in 2 ways, for example, as 84640000 + 27573001 = 9200^2 + 5251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112213001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112213051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409400 + ... + 409673.

It is an arithmetic number, because the mean of its divisors is an integer number (28258053).

Almost surely, 2^112213001 is an apocalyptic number.

It is an amenable number.

112213001 is a deficient number, since it is larger than the sum of its proper divisors (819211).

112213001 is an equidigital number, since it uses as much as digits as its factorization.

112213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819210.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112213001 is about 10593.0638155351. The cubic root of 112213001 is about 482.3338323702. Note that the first 3 decimals are identical.

Adding to 112213001 its reverse (100312211), we get a palindrome (212525212).

The spelling of 112213001 in words is "one hundred twelve million, two hundred thirteen thousand, one".