20222723 has 2 divisors, whose sum is σ = 20222724. Its totient is φ = 20222722.

The previous prime is 20222689. The next prime is 20222729. The reversal of 20222723 is 32722202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20222723 - 2¹⁶ = 20157187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20222695 and 20222704.

It is not a weakly prime, because it can be changed into another prime (20222729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111361 + 10111362.

It is an arithmetic number, because the mean of its divisors is an integer number (10111362).

Almost surely, 2^20222723 is an apocalyptic number.

20222723 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222723 is an equidigital number, since it uses as much as digits as its factorization.

20222723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20222723 is about 4496.9682009105. The cubic root of 20222723 is about 272.4456497390.

Adding to 20222723 its reverse (32722202), we get a palindrome (52944925).

The spelling of 20222723 in words is "twenty million, two hundred twenty-two thousand, seven hundred twenty-three".