65401222 has 4 divisors (see below), whose sum is σ = 98101836. Its totient is φ = 32700610.

The previous prime is 65401207. The next prime is 65401229. The reversal of 65401222 is 22210456.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 65401193 and 65401202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65401229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16350304 + ... + 16350307.

It is an arithmetic number, because the mean of its divisors is an integer number (24525459).

Almost surely, 2^65401222 is an apocalyptic number.

65401222 is a deficient number, since it is larger than the sum of its proper divisors (32700614).

65401222 is a wasteful number, since it uses less digits than its factorization.

65401222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32700613.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 65401222 is about 8087.1022004177. The cubic root of 65401222 is about 402.8981634082.

Adding to 65401222 its reverse (22210456), we get a palindrome (87611678).

The spelling of 65401222 in words is "sixty-five million, four hundred one thousand, two hundred twenty-two".