20212211223 has 12 divisors (see below), whose sum is σ = 29984482008. Its totient is φ = 13110623280.

The previous prime is 20212211221. The next prime is 20212211249. The reversal of 20212211223 is 32211221202.

20212211223 is a `hidden beast` number, since 20 + 212 + 211 + 223 = 666.

It is not a de Polignac number, because 20212211223 - 2¹ = 20212211221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212211196 and 20212211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212211221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30348333 + ... + 30348998.

It is an arithmetic number, because the mean of its divisors is an integer number (2498706834).

Almost surely, 2^20212211223 is an apocalyptic number.

20212211223 is a deficient number, since it is larger than the sum of its proper divisors (9772270785).

20212211223 is a wasteful number, since it uses less digits than its factorization.

20212211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60697374 (or 60697371 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20212211223 its reverse (32211221202), we get a palindrome (52423432425).

The spelling of 20212211223 in words is "twenty billion, two hundred twelve million, two hundred eleven thousand, two hundred twenty-three".