22121222112201 has 16 divisors (see below), whose sum is σ = 30448388784128. Its totient is φ = 14270830160400.

The previous prime is 22121222112191. The next prime is 22121222112221. The reversal of 22121222112201 is 10221122212122.

It is not a de Polignac number, because 22121222112201 - 2⁵ = 22121222112169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22121222112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6274585 + ... + 9144006.

It is an arithmetic number, because the mean of its divisors is an integer number (1903024299008).

Almost surely, 2^{22121222112201} is an apocalyptic number.

It is an amenable number.

22121222112201 is a deficient number, since it is larger than the sum of its proper divisors (8327166671927).

22121222112201 is a wasteful number, since it uses less digits than its factorization.

22121222112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434052.

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

Adding to 22121222112201 its reverse (10221122212122), we get a palindrome (32342344324323).

The spelling of 22121222112201 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred one".