22102427 has 2 divisors, whose sum is σ = 22102428. Its totient is φ = 22102426.

The previous prime is 22102417. The next prime is 22102439. The reversal of 22102427 is 72420122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22102427 - 2¹⁶ = 22036891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102399 and 22102408.

It is not a weakly prime, because it can be changed into another prime (22102417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051213 + 11051214.

It is an arithmetic number, because the mean of its divisors is an integer number (11051214).

Almost surely, 2^22102427 is an apocalyptic number.

22102427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102427 is an equidigital number, since it uses as much as digits as its factorization.

22102427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 22102427 is about 4701.3218353991. The cubic root of 22102427 is about 280.6381152198.

Adding to 22102427 its reverse (72420122), we get a palindrome (94522549).

The spelling of 22102427 in words is "twenty-two million, one hundred two thousand, four hundred twenty-seven".