12205575221 has 8 divisors (see below), whose sum is σ = 14769771840. Its totient is φ = 9846514368.

The previous prime is 12205575211. The next prime is 12205575229. The reversal of 12205575221 is 12257550221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12205575221 - 2²⁶ = 12138466357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205575229) 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, 51283811 + ... + 51284048.

It is an arithmetic number, because the mean of its divisors is an integer number (1846221480).

Almost surely, 2^12205575221 is an apocalyptic number.

It is an amenable number.

12205575221 is a deficient number, since it is larger than the sum of its proper divisors (2564196619).

12205575221 is a wasteful number, since it uses less digits than its factorization.

12205575221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102567883.

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 12205575221 in words is "twelve billion, two hundred five million, five hundred seventy-five thousand, two hundred twenty-one".