12205140245 has 32 divisors (see below), whose sum is σ = 15765995520. Its totient is φ = 9052476160.

The previous prime is 12205140229. The next prime is 12205140251. The reversal of 12205140245 is 54204150221.

It is not a de Polignac number, because 12205140245 - 2⁴ = 12205140229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344300 + ... + 378090.

It is an arithmetic number, because the mean of its divisors is an integer number (492687360).

Almost surely, 2^12205140245 is an apocalyptic number.

It is an amenable number.

12205140245 is a deficient number, since it is larger than the sum of its proper divisors (3560855275).

12205140245 is a wasteful number, since it uses less digits than its factorization.

12205140245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33925.

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

Adding to 12205140245 its reverse (54204150221), we get a palindrome (66409290466).

The spelling of 12205140245 in words is "twelve billion, two hundred five million, one hundred forty thousand, two hundred forty-five".