212220422441 has 16 divisors (see below), whose sum is σ = 218917395648. Its totient is φ = 205574760000.

The previous prime is 212220422377. The next prime is 212220422497. The reversal of 212220422441 is 144224022212.

It is a cyclic number.

It is not a de Polignac number, because 212220422441 - 2⁶ = 212220422377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212220422441.

It is not an unprimeable number, because it can be changed into a prime (212220422941) 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 15 ways as a sum of consecutive naturals, for example, 37340186 + ... + 37345868.

It is an arithmetic number, because the mean of its divisors is an integer number (13682337228).

Almost surely, 2^212220422441 is an apocalyptic number.

It is an amenable number.

212220422441 is a deficient number, since it is larger than the sum of its proper divisors (6696973207).

212220422441 is a wasteful number, since it uses less digits than its factorization.

212220422441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 212220422441 its reverse (144224022212), we get a palindrome (356444444653).

The spelling of 212220422441 in words is "two hundred twelve billion, two hundred twenty million, four hundred twenty-two thousand, four hundred forty-one".