65211422 has 16 divisors (see below), whose sum is σ = 103851072. Its totient is φ = 30604800.

The previous prime is 65211409. The next prime is 65211469. The reversal of 65211422 is 22411256.

It is a happy number.

65211422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11243 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (6490692).

Almost surely, 2^65211422 is an apocalyptic number.

65211422 is a deficient number, since it is larger than the sum of its proper divisors (38639650).

65211422 is a wasteful number, since it uses less digits than its factorization.

65211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203.

The product of its digits is 960, while the sum is 23.

The square root of 65211422 is about 8075.3589393909. The cubic root of 65211422 is about 402.5080373381.

Adding to 65211422 its reverse (22411256), we get a palindrome (87622678).

The spelling of 65211422 in words is "sixty-five million, two hundred eleven thousand, four hundred twenty-two".