12205031052 has 24 divisors (see below), whose sum is σ = 29716598016. Its totient is φ = 3891459088.

The previous prime is 12205031023. The next prime is 12205031057. The reversal of 12205031052 is 25013050221.

It is not an unprimeable number, because it can be changed into a prime (12205031057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22110288 + ... + 22110839.

It is an arithmetic number, because the mean of its divisors is an integer number (1238191584).

Almost surely, 2^12205031052 is an apocalyptic number.

12205031052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12205031052 is an abundant number, since it is smaller than the sum of its proper divisors (17511566964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12205031052 is a wasteful number, since it uses less digits than its factorization.

12205031052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44221157 (or 44221155 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 12205031052 its reverse (25013050221), we get a palindrome (37218081273).

The spelling of 12205031052 in words is "twelve billion, two hundred five million, thirty-one thousand, fifty-two".