12205333525 has 144 divisors (see below), whose sum is σ = 20898662400. Its totient is φ = 6889449600.

The previous prime is 12205333493. The next prime is 12205333529. The reversal of 12205333525 is 52533350221.

It is not a de Polignac number, because 12205333525 - 2⁵ = 12205333493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205333529) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9252816 + ... + 9254134.

It is an arithmetic number, because the mean of its divisors is an integer number (145129600).

Almost surely, 2^12205333525 is an apocalyptic number.

It is an amenable number.

12205333525 is a deficient number, since it is larger than the sum of its proper divisors (8693328875).

12205333525 is a wasteful number, since it uses less digits than its factorization.

12205333525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1384 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 12205333525 its reverse (52533350221), we get a palindrome (64738683746).

The spelling of 12205333525 in words is "twelve billion, two hundred five million, three hundred thirty-three thousand, five hundred twenty-five".