222001221201 has 16 divisors (see below), whose sum is σ = 299015937024. Its totient is φ = 146497123584.

The previous prime is 222001221121. The next prime is 222001221203. The reversal of 222001221201 is 102122100222.

222001221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222001221201 - 2¹⁵ = 222001188433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222001221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175921 + ... + 689166.

It is an arithmetic number, because the mean of its divisors is an integer number (18688496064).

Almost surely, 2^222001221201 is an apocalyptic number.

It is an amenable number.

222001221201 is a deficient number, since it is larger than the sum of its proper divisors (77014715823).

222001221201 is a wasteful number, since it uses less digits than its factorization.

222001221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865960.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222001221201 its reverse (102122100222), we get a palindrome (324123321423).

The spelling of 222001221201 in words is "two hundred twenty-two billion, one million, two hundred twenty-one thousand, two hundred one".