66122230 has 8 divisors (see below), whose sum is σ = 119020032. Its totient is φ = 26448888.

The previous prime is 66122213. The next prime is 66122239. The reversal of 66122230 is 3222166.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66122239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3306102 + ... + 3306121.

It is an arithmetic number, because the mean of its divisors is an integer number (14877504).

Almost surely, 2^66122230 is an apocalyptic number.

66122230 is a deficient number, since it is larger than the sum of its proper divisors (52897802).

66122230 is a wasteful number, since it uses less digits than its factorization.

66122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612230.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 66122230 is about 8131.5576613586. The cubic root of 66122230 is about 404.3733233489.

Adding to 66122230 its reverse (3222166), we get a palindrome (69344396).

The spelling of 66122230 in words is "sixty-six million, one hundred twenty-two thousand, two hundred thirty".