222210211021201 has 4 divisors (see below), whose sum is σ = 239303304176692. Its totient is φ = 205117117865712.

The previous prime is 222210211021159. The next prime is 222210211021207. The reversal of 222210211021201 is 102120112012222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145214429745025 + 76995781276176 = 12050495^2 + 8774724^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222210211021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222210211021207) 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 3 ways as a sum of consecutive naturals, for example, 8546546577726 + ... + 8546546577751.

It is an arithmetic number, because the mean of its divisors is an integer number (59825826044173).

Almost surely, 2^{222210211021201} is an apocalyptic number.

It is an amenable number.

222210211021201 is a deficient number, since it is larger than the sum of its proper divisors (17093093155491).

222210211021201 is a wasteful number, since it uses less digits than its factorization.

222210211021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093093155490.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222210211021201 its reverse (102120112012222), we get a palindrome (324330323033423).

The spelling of 222210211021201 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, two hundred one".