212422423 has 2 divisors, whose sum is σ = 212422424. Its totient is φ = 212422422.

The previous prime is 212422417. The next prime is 212422453. The reversal of 212422423 is 324224212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212422423 - 2⁵ = 212422391 is a prime.

It is a super-4 number, since 4×212422423⁴ (a number of 34 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212422394 and 212422403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212422453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106211211 + 106211212.

It is an arithmetic number, because the mean of its divisors is an integer number (106211212).

Almost surely, 2^212422423 is an apocalyptic number.

212422423 is a deficient number, since it is larger than the sum of its proper divisors (1).

212422423 is an equidigital number, since it uses as much as digits as its factorization.

212422423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 22.

The square root of 212422423 is about 14574.7186250713. The cubic root of 212422423 is about 596.6689699914.

Adding to 212422423 its reverse (324224212), we get a palindrome (536646635).

The spelling of 212422423 in words is "two hundred twelve million, four hundred twenty-two thousand, four hundred twenty-three".