12221020122201 has 24 divisors (see below), whose sum is σ = 20270910572640. Its totient is φ = 7016853657600.

The previous prime is 12221020122193. The next prime is 12221020122229. The reversal of 12221020122201 is 10222102012221.

It is a happy number.

It is not a de Polignac number, because 12221020122201 - 2³ = 12221020122193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221020122401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3248541480 + ... + 3248545241.

It is an arithmetic number, because the mean of its divisors is an integer number (844621273860).

Almost surely, 2^{12221020122201} is an apocalyptic number.

12221020122201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221020122201 is a deficient number, since it is larger than the sum of its proper divisors (8049890450439).

12221020122201 is a wasteful number, since it uses less digits than its factorization.

12221020122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497086757 (or 6497086754 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221020122201 its reverse (10222102012221), we get a palindrome (22443122134422).

It can be divided in two parts, 1222102012220 and 1, that added together give a palindrome (1222102012221).

The spelling of 12221020122201 in words is "twelve trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred one".