12242261045 has 32 divisors (see below), whose sum is σ = 16960736256. Its totient is φ = 8309433600.

The previous prime is 12242261041. The next prime is 12242261063. The reversal of 12242261045 is 54016224221.

It is not a de Polignac number, because 12242261045 - 2² = 12242261041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12242260999 and 12242261017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242261041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1485035 + ... + 1493255.

It is an arithmetic number, because the mean of its divisors is an integer number (530023008).

Almost surely, 2^12242261045 is an apocalyptic number.

It is an amenable number.

12242261045 is a deficient number, since it is larger than the sum of its proper divisors (4718475211).

12242261045 is a wasteful number, since it uses less digits than its factorization.

12242261045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8661.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12242261045 its reverse (54016224221), we get a palindrome (66258485266).

The spelling of 12242261045 in words is "twelve billion, two hundred forty-two million, two hundred sixty-one thousand, forty-five".