20203212212223 has 16 divisors (see below), whose sum is σ = 27439120383840. Its totient is φ = 13220265360896.

The previous prime is 20203212212191. The next prime is 20203212212251. The reversal of 20203212212223 is 32221221230202.

It is a cyclic number.

It is not a de Polignac number, because 20203212212223 - 2⁵ = 20203212212191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203212212193 and 20203212212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203212212273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276122040 + ... + 276195197.

It is an arithmetic number, because the mean of its divisors is an integer number (1714945023990).

Almost surely, 2^{20203212212223} is an apocalyptic number.

20203212212223 is a deficient number, since it is larger than the sum of its proper divisors (7235908171617).

20203212212223 is a wasteful number, since it uses less digits than its factorization.

20203212212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552317466.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20203212212223 its reverse (32221221230202), we get a palindrome (52424433442425).

The spelling of 20203212212223 in words is "twenty trillion, two hundred three billion, two hundred twelve million, two hundred twelve thousand, two hundred twenty-three".