12122045 has 16 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 8904000.

The previous prime is 12122041. The next prime is 12122063. The reversal of 12122045 is 54022121.

It is not a de Polignac number, because 12122045 - 2² = 12122041 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 (12122041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15944 + ... + 16686.

It is an arithmetic number, because the mean of its divisors is an integer number (984312).

Almost surely, 2^12122045 is an apocalyptic number.

It is an amenable number.

12122045 is a deficient number, since it is larger than the sum of its proper divisors (3626947).

12122045 is a wasteful number, since it uses less digits than its factorization.

12122045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12122045 is about 3481.6727301686. The cubic root of 12122045 is about 229.7163800821.

Adding to 12122045 its reverse (54022121), we get a palindrome (66144166).

The spelling of 12122045 in words is "twelve million, one hundred twenty-two thousand, forty-five".