2011225445 has 8 divisors (see below), whose sum is σ = 2418708600. Its totient is φ = 1605488320.

The previous prime is 2011225441. The next prime is 2011225537. The reversal of 2011225445 is 5445221102.

It can be written as a sum of positive squares in 4 ways, for example, as 14386849 + 1996838596 = 3793^2 + 44686^2 .

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

It is not a de Polignac number, because 2011225445 - 2² = 2011225441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011225441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 433970 + ... + 438579.

It is an arithmetic number, because the mean of its divisors is an integer number (302338575).

Almost surely, 2^2011225445 is an apocalyptic number.

It is an amenable number.

2011225445 is a deficient number, since it is larger than the sum of its proper divisors (407483155).

2011225445 is an equidigital number, since it uses as much as digits as its factorization.

2011225445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873015.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2011225445 is about 44846.6882277833. The cubic root of 2011225445 is about 1262.2738492416.

Adding to 2011225445 its reverse (5445221102), we get a palindrome (7456446547).

The spelling of 2011225445 in words is "two billion, eleven million, two hundred twenty-five thousand, four hundred forty-five".