112212213445 has 4 divisors (see below), whose sum is σ = 134654656140. Its totient is φ = 89769770752.

The previous prime is 112212213433. The next prime is 112212213461. The reversal of 112212213445 is 544312212211.

It is a happy number.

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 54419091841 + 57793121604 = 233279^2 + 240402^2 .

It is a cyclic number.

It is not a de Polignac number, because 112212213445 - 2⁵ = 112212213413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11221221340 + ... + 11221221349.

It is an arithmetic number, because the mean of its divisors is an integer number (33663664035).

Almost surely, 2^112212213445 is an apocalyptic number.

It is an amenable number.

112212213445 is a deficient number, since it is larger than the sum of its proper divisors (22442442695).

112212213445 is an equidigital number, since it uses as much as digits as its factorization.

112212213445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22442442694.

The product of its digits is 3840, while the sum is 28.

Adding to 112212213445 its reverse (544312212211), we get a palindrome (656524425656).

The spelling of 112212213445 in words is "one hundred twelve billion, two hundred twelve million, two hundred thirteen thousand, four hundred forty-five".