212211221002201 has 4 divisors (see below), whose sum is σ = 212450467024512. Its totient is φ = 211971974979892.

The previous prime is 212211221002181. The next prime is 212211221002213. The reversal of 212211221002201 is 102200122112212.

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 212211221002201 - 2⁵ = 212211221002169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212211221002241) 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, 119623009825 + ... + 119623011598.

It is an arithmetic number, because the mean of its divisors is an integer number (53112616756128).

Almost surely, 2^{212211221002201} is an apocalyptic number.

It is an amenable number.

212211221002201 is a deficient number, since it is larger than the sum of its proper divisors (239246022311).

212211221002201 is an equidigital number, since it uses as much as digits as its factorization.

212211221002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239246022310.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211221002201 its reverse (102200122112212), we get a palindrome (314411343114413).

The spelling of 212211221002201 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, two thousand, two hundred one".