212222200120201 has 4 divisors (see below), whose sum is σ = 212392113812500. Its totient is φ = 212052286427904.

The previous prime is 212222200120159. The next prime is 212222200120237. The reversal of 212222200120201 is 102021002222212.

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 160767057566025 + 51455142554176 = 12679395^2 + 7173224^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222200120201 - 2³⁹ = 211672444306313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222200120501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84956844276 + ... + 84956846773.

It is an arithmetic number, because the mean of its divisors is an integer number (53098028453125).

Almost surely, 2^{212222200120201} is an apocalyptic number.

It is an amenable number.

212222200120201 is a deficient number, since it is larger than the sum of its proper divisors (169913692299).

212222200120201 is a wasteful number, since it uses less digits than its factorization.

212222200120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169913692298.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212222200120201 its reverse (102021002222212), we get a palindrome (314243202342413).

The spelling of 212222200120201 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred million, one hundred twenty thousand, two hundred one".