66122122 has 8 divisors (see below), whose sum is σ = 108199872. Its totient is φ = 30055500.

The previous prime is 66122113. The next prime is 66122137. The reversal of 66122122 is 22122166.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 3005551 = 66122122 / (6 + 6 + 1 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 66122093 and 66122102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502754 + ... + 1502797.

It is an arithmetic number, because the mean of its divisors is an integer number (13524984).

Almost surely, 2^66122122 is an apocalyptic number.

66122122 is a deficient number, since it is larger than the sum of its proper divisors (42077750).

66122122 is a wasteful number, since it uses less digits than its factorization.

66122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005564.

The product of its digits is 576, while the sum is 22.

The square root of 66122122 is about 8131.5510205618. The cubic root of 66122122 is about 404.3731031892.

Adding to 66122122 its reverse (22122166), we get a palindrome (88244288).

The spelling of 66122122 in words is "sixty-six million, one hundred twenty-two thousand, one hundred twenty-two".