12201010221 has 32 divisors (see below), whose sum is σ = 17023061248. Its totient is φ = 7765424640.

The previous prime is 12201010219. The next prime is 12201010229.

12201010221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12201010221 - 2¹ = 12201010219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201010197 and 12201010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201010229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3092376 + ... + 3096318.

It is an arithmetic number, because the mean of its divisors is an integer number (531970664).

Almost surely, 2^12201010221 is an apocalyptic number.

It is an amenable number.

12201010221 is a deficient number, since it is larger than the sum of its proper divisors (4822051027).

12201010221 is a wasteful number, since it uses less digits than its factorization.

12201010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its (nonzero) digits is 16, while the sum is 12.

It can be divided in two parts, 122010 and 10221, that added together give a palindrome (132231).

The spelling of 12201010221 in words is "twelve billion, two hundred one million, ten thousand, two hundred twenty-one".