2212321222201 has 4 divisors (see below), whose sum is σ = 2215772582004. Its totient is φ = 2208869862400.

The previous prime is 2212321222187. The next prime is 2212321222261. The reversal of 2212321222201 is 1022221232122.

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 2125694016576 + 86627205625 = 1457976^2 + 294325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212321222201 - 2⁹ = 2212321221689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212321222261) 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, 1725678940 + ... + 1725680221.

It is an arithmetic number, because the mean of its divisors is an integer number (553943145501).

Almost surely, 2^{2212321222201} is an apocalyptic number.

It is an amenable number.

2212321222201 is a deficient number, since it is larger than the sum of its proper divisors (3451359803).

2212321222201 is an equidigital number, since it uses as much as digits as its factorization.

2212321222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451359802.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2212321222201 its reverse (1022221232122), we get a palindrome (3234542454323).

The spelling of 2212321222201 in words is "two trillion, two hundred twelve billion, three hundred twenty-one million, two hundred twenty-two thousand, two hundred one".