22222201221201 has 4 divisors (see below), whose sum is σ = 29629601628272. Its totient is φ = 14814800814132.

The previous prime is 22222201221151. The next prime is 22222201221251. The reversal of 22222201221201 is 10212210222222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22222201221151) and next prime (22222201221251).

It is not a de Polignac number, because 22222201221201 - 2⁶ = 22222201221137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222201221251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3703700203531 + ... + 3703700203536.

It is an arithmetic number, because the mean of its divisors is an integer number (7407400407068).

Almost surely, 2^{22222201221201} is an apocalyptic number.

It is an amenable number.

22222201221201 is a deficient number, since it is larger than the sum of its proper divisors (7407400407071).

22222201221201 is an equidigital number, since it uses as much as digits as its factorization.

22222201221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407400407070.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22222201221201 its reverse (10212210222222), we get a palindrome (32434411443423).

The spelling of 22222201221201 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred one million, two hundred twenty-one thousand, two hundred one".