12205570670 has 16 divisors (see below), whose sum is σ = 21971506608. Its totient is φ = 4881899520.

The previous prime is 12205570669. The next prime is 12205570673. The reversal of 12205570670 is 7607550221.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12205570670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205570673) 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, 163205 + ... + 225935.

It is an arithmetic number, because the mean of its divisors is an integer number (1373219163).

Almost surely, 2^12205570670 is an apocalyptic number.

12205570670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12205570670 is a deficient number, since it is larger than the sum of its proper divisors (9765935938).

12205570670 is a wasteful number, since it uses less digits than its factorization.

12205570670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82195.

The product of its (nonzero) digits is 29400, while the sum is 35.

The spelling of 12205570670 in words is "twelve billion, two hundred five million, five hundred seventy thousand, six hundred seventy".