122222246678 has 16 divisors (see below), whose sum is σ = 213477132960. Its totient is φ = 51392642496.

The previous prime is 122222246669. The next prime is 122222246683. The reversal of 122222246678 is 876642222221.

It is a happy number.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82359263 + ... + 82360746.

It is an arithmetic number, because the mean of its divisors is an integer number (13342320810).

Almost surely, 2^122222246678 is an apocalyptic number.

122222246678 is a deficient number, since it is larger than the sum of its proper divisors (91254886282).

122222246678 is a wasteful number, since it uses less digits than its factorization.

122222246678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164720071.

The product of its digits is 516096, while the sum is 44.

Adding to 122222246678 its reverse (876642222221), we get a palindrome (998864468899).

The spelling of 122222246678 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred forty-six thousand, six hundred seventy-eight".