12222122212201 has 36 divisors (see below), whose sum is σ = 13813954761628. Its totient is φ = 10805330764800.

The previous prime is 12222122212187. The next prime is 12222122212207. The reversal of 12222122212201 is 10221222122221.

It can be written as a sum of positive squares in 6 ways, for example, as 8945482810000 + 3276639402201 = 2990900^2 + 1810149^2 .

It is not a de Polignac number, because 12222122212201 - 2³⁷ = 12084683258729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222122212207) 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, 63568525 + ... + 63760501.

Almost surely, 2^{12222122212201} is an apocalyptic number.

12222122212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222122212201 is a deficient number, since it is larger than the sum of its proper divisors (1591832549427).

12222122212201 is a wasteful number, since it uses less digits than its factorization.

12222122212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192394 (or 192342 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12222122212201 its reverse (10221222122221), we get a palindrome (22443344334422).

The spelling of 12222122212201 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred one".