12221010222201 has 36 divisors (see below), whose sum is σ = 19927650367716. Its totient is φ = 7206492490560.

The previous prime is 12221010222191. The next prime is 12221010222227. The reversal of 12221010222201 is 10222201012221.

It is a happy number.

12221010222201 is a `hidden beast` number, since 1 + 22 + 210 + 10 + 222 + 201 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11321071502400 + 899938719801 = 3364680^2 + 948651^2 .

It is not a de Polignac number, because 12221010222201 - 2¹³ = 12221010214009 is a prime.

It is a super-2 number, since 2×12221010222201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221010224201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151611486 + ... + 151692071.

Almost surely, 2^{12221010222201} is an apocalyptic number.

12221010222201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12221010222201 is a deficient number, since it is larger than the sum of its proper divisors (7706640145515).

12221010222201 is a wasteful number, since it uses less digits than its factorization.

12221010222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303303622 (or 303303608 counting only the distinct ones).

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

Adding to 12221010222201 its reverse (10222201012221), we get a palindrome (22443211234422).

The spelling of 12221010222201 in words is "twelve trillion, two hundred twenty-one billion, ten million, two hundred twenty-two thousand, two hundred one".