12221122221201 has 32 divisors (see below), whose sum is σ = 17276808462336. Its totient is φ = 7670728728000.

The previous prime is 12221122221199. The next prime is 12221122221221. The reversal of 12221122221201 is 10212222112221.

It is not a de Polignac number, because 12221122221201 - 2¹ = 12221122221199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221122221221) 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, 35169616 + ... + 35515406.

It is an arithmetic number, because the mean of its divisors is an integer number (539900264448).

Almost surely, 2^{12221122221201} is an apocalyptic number.

It is an amenable number.

12221122221201 is a deficient number, since it is larger than the sum of its proper divisors (5055686241135).

12221122221201 is a wasteful number, since it uses less digits than its factorization.

12221122221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356133.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12221122221201 its reverse (10212222112221), we get a palindrome (22433344333422).

The spelling of 12221122221201 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred one".