222212321222201 has 4 divisors (see below), whose sum is σ = 222482981784804. Its totient is φ = 221941660659600.

The previous prime is 222212321222179. The next prime is 222212321222233. The reversal of 222212321222201 is 102222123212222.

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 40219378515625 + 181992942706576 = 6341875^2 + 13490476^2 .

It is a cyclic number.

It is not a de Polignac number, because 222212321222201 - 2³⁰ = 222211247480377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222212321225201) 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, 135330280070 + ... + 135330281711.

It is an arithmetic number, because the mean of its divisors is an integer number (55620745446201).

Almost surely, 2^{222212321222201} is an apocalyptic number.

It is an amenable number.

222212321222201 is a deficient number, since it is larger than the sum of its proper divisors (270660562603).

222212321222201 is an equidigital number, since it uses as much as digits as its factorization.

222212321222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270660562602.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 222212321222201 its reverse (102222123212222), we get a palindrome (324434444434423).

The spelling of 222212321222201 in words is "two hundred twenty-two trillion, two hundred twelve billion, three hundred twenty-one million, two hundred twenty-two thousand, two hundred one".