11212445 has 8 divisors (see below), whose sum is σ = 13475544. Its totient is φ = 8956224.

The previous prime is 11212433. The next prime is 11212447. The reversal of 11212445 is 54421211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2343961 + 8868484 = 1531^2 + 2978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212445 - 2⁴ = 11212429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3107 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (1684443).

Almost surely, 2^11212445 is an apocalyptic number.

It is an amenable number.

11212445 is a deficient number, since it is larger than the sum of its proper divisors (2263099).

11212445 is an equidigital number, since it uses as much as digits as its factorization.

11212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439.

The product of its digits is 320, while the sum is 20.

The square root of 11212445 is about 3348.4989174255. The cubic root of 11212445 is about 223.8206272883.

Adding to 11212445 its reverse (54421211), we get a palindrome (65633656).

The spelling of 11212445 in words is "eleven million, two hundred twelve thousand, four hundred forty-five".