20212223 has 2 divisors, whose sum is σ = 20212224. Its totient is φ = 20212222.

The previous prime is 20212187. The next prime is 20212259. The reversal of 20212223 is 32221202.

It is a balanced prime because it is at equal distance from previous prime (20212187) and next prime (20212259).

It is a cyclic number.

It is not a de Polignac number, because 20212223 - 2⁸ = 20211967 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20212198 and 20212207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106111 + 10106112.

It is an arithmetic number, because the mean of its divisors is an integer number (10106112).

Almost surely, 2^20212223 is an apocalyptic number.

20212223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212223 is an equidigital number, since it uses as much as digits as its factorization.

20212223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20212223 is about 4495.8005961119. The cubic root of 20212223 is about 272.3984886887.

Adding to 20212223 its reverse (32221202), we get a palindrome (52433425).

The spelling of 20212223 in words is "twenty million, two hundred twelve thousand, two hundred twenty-three".