40222123 has 2 divisors, whose sum is σ = 40222124. Its totient is φ = 40222122.

The previous prime is 40222121. The next prime is 40222141. The reversal of 40222123 is 32122204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40222123 - 2¹ = 40222121 is a prime.

Together with 40222121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40222097 and 40222106.

It is not a weakly prime, because it can be changed into another prime (40222121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111061 + 20111062.

It is an arithmetic number, because the mean of its divisors is an integer number (20111062).

Almost surely, 2^40222123 is an apocalyptic number.

40222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222123 is an equidigital number, since it uses as much as digits as its factorization.

40222123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40222123 is about 6342.0913743023. The cubic root of 40222123 is about 342.6270628064.

Adding to 40222123 its reverse (32122204), we get a palindrome (72344327).

The spelling of 40222123 in words is "forty million, two hundred twenty-two thousand, one hundred twenty-three".