12205015444056 has 32 divisors (see below), whose sum is σ = 30732053284800. Its totient is φ = 4039069858080.

The previous prime is 12205015444007. The next prime is 12205015444073. The reversal of 12205015444056 is 65044451050221.

It is a super-2 number, since 2×12205015444056² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829285550 + ... + 1829292221.

It is an arithmetic number, because the mean of its divisors is an integer number (960376665150).

Almost surely, 2^{12205015444056} is an apocalyptic number.

It is an amenable number.

12205015444056 is an abundant number, since it is smaller than the sum of its proper divisors (18527037840744).

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

12205015444056 is a wasteful number, since it uses less digits than its factorization.

12205015444056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658577919 (or 3658577915 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 12205015444056 its reverse (65044451050221), we get a palindrome (77249466494277).

The spelling of 12205015444056 in words is "twelve trillion, two hundred five billion, fifteen million, four hundred forty-four thousand, fifty-six".