212220222133 has 4 divisors (see below), whose sum is σ = 212395178188. Its totient is φ = 212045266080.

The previous prime is 212220222079. The next prime is 212220222187. The reversal of 212220222133 is 331222022212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (212220222079) and next prime (212220222187).

It can be written as a sum of positive squares in 2 ways, for example, as 121220259889 + 90999962244 = 348167^2 + 301662^2 .

It is a cyclic number.

It is not a de Polignac number, because 212220222133 - 2⁹ = 212220221621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220282133) 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, 87476208 + ... + 87478633.

It is an arithmetic number, because the mean of its divisors is an integer number (53098794547).

Almost surely, 2^212220222133 is an apocalyptic number.

It is an amenable number.

212220222133 is a deficient number, since it is larger than the sum of its proper divisors (174956055).

212220222133 is a wasteful number, since it uses less digits than its factorization.

212220222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174956054.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212220222133 its reverse (331222022212), we get a palindrome (543442244345).

The spelling of 212220222133 in words is "two hundred twelve billion, two hundred twenty million, two hundred twenty-two thousand, one hundred thirty-three".