12201222001 has 8 divisors (see below), whose sum is σ = 12852345600. Its totient is φ = 11550993840.

The previous prime is 12201221983. The next prime is 12201222037. The reversal of 12201222001 is 10022210221.

It is a happy number.

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 12201222001 - 2¹⁷ = 12201090929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201222301) 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, 195790 + ... + 250471.

It is an arithmetic number, because the mean of its divisors is an integer number (1606543200).

Almost surely, 2^12201222001 is an apocalyptic number.

It is an amenable number.

12201222001 is a deficient number, since it is larger than the sum of its proper divisors (651123599).

12201222001 is a wasteful number, since it uses less digits than its factorization.

12201222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447719.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12201222001 its reverse (10022210221), we get a palindrome (22223432222).

It can be divided in two parts, 1220 and 1222001, that added together give a palindrome (1223221).

The spelling of 12201222001 in words is "twelve billion, two hundred one million, two hundred twenty-two thousand, one".