212222212112201 has 4 divisors (see below), whose sum is σ = 219068089922304. Its totient is φ = 205376334302100.

The previous prime is 212222212112179. The next prime is 212222212112203. The reversal of 212222212112201 is 102211212222212.

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 a cyclic number.

It is not a de Polignac number, because 212222212112201 - 2⁶ = 212222212112137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222212112203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422938905005 + ... + 3422938905066.

It is an arithmetic number, because the mean of its divisors is an integer number (54767022480576).

Almost surely, 2^{212222212112201} is an apocalyptic number.

It is an amenable number.

212222212112201 is a deficient number, since it is larger than the sum of its proper divisors (6845877810103).

212222212112201 is an equidigital number, since it uses as much as digits as its factorization.

212222212112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845877810102.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212222212112201 its reverse (102211212222212), we get a palindrome (314433424334413).

The spelling of 212222212112201 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, two hundred one".