222101222201 has 4 divisors (see below), whose sum is σ = 222143444004. Its totient is φ = 222059000400.

The previous prime is 222101222197. The next prime is 222101222219. The reversal of 222101222201 is 102222101222.

It is a happy number.

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 114363006976 + 107738215225 = 338176^2 + 328235^2 .

It is a cyclic number.

It is not a de Polignac number, because 222101222201 - 2² = 222101222197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222101222201.

It is not an unprimeable number, because it can be changed into a prime (222101222261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21103010 + ... + 21113531.

It is an arithmetic number, because the mean of its divisors is an integer number (55535861001).

Almost surely, 2^222101222201 is an apocalyptic number.

It is an amenable number.

222101222201 is a deficient number, since it is larger than the sum of its proper divisors (42221803).

222101222201 is an equidigital number, since it uses as much as digits as its factorization.

222101222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42221802.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222101222201 its reverse (102222101222), we get a palindrome (324323323423).

The spelling of 222101222201 in words is "two hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, two hundred one".