12221376201 has 32 divisors (see below), whose sum is σ = 18238577280. Its totient is φ = 8088035328.

The previous prime is 12221376199. The next prime is 12221376217. The reversal of 12221376201 is 10267312221.

12221376201 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 1 + 37 + 620 + 1 = 666.

It is not a de Polignac number, because 12221376201 - 2¹ = 12221376199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12221376001) 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, 2127405 + ... + 2133141.

It is an arithmetic number, because the mean of its divisors is an integer number (569955540).

Almost surely, 2^12221376201 is an apocalyptic number.

It is an amenable number.

12221376201 is a deficient number, since it is larger than the sum of its proper divisors (6017201079).

12221376201 is a wasteful number, since it uses less digits than its factorization.

12221376201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6310 (or 6304 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 12221376201 its reverse (10267312221), we get a palindrome (22488688422).

The spelling of 12221376201 in words is "twelve billion, two hundred twenty-one million, three hundred seventy-six thousand, two hundred one".