222001121220201 has 24 divisors (see below), whose sum is σ = 326108882136960. Its totient is φ = 145489788439776.

The previous prime is 222001121220191. The next prime is 222001121220223. The reversal of 222001121220201 is 102022121100222.

It is a happy number.

222001121220201 is a `hidden beast` number, since 2 + 220 + 0 + 1 + 1 + 21 + 220 + 201 = 666.

It is not a de Polignac number, because 222001121220201 - 2⁴¹ = 219802097964649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222001121120201) 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, 27996816 + ... + 35040318.

It is an arithmetic number, because the mean of its divisors is an integer number (13587870089040).

Almost surely, 2^{222001121220201} is an apocalyptic number.

It is an amenable number.

222001121220201 is a deficient number, since it is larger than the sum of its proper divisors (104107760916759).

222001121220201 is a wasteful number, since it uses less digits than its factorization.

222001121220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102925 (or 7102922 counting only the distinct ones).

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

Adding to 222001121220201 its reverse (102022121100222), we get a palindrome (324023242320423).

The spelling of 222001121220201 in words is "two hundred twenty-two trillion, one billion, one hundred twenty-one million, two hundred twenty thousand, two hundred one".