122333456778 has 32 divisors (see below), whose sum is σ = 263503207296. Its totient is φ = 37638811968.

The previous prime is 122333456767. The next prime is 122333456779. The reversal of 122333456778 is 877654333221.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 122333456778.

It is not an unprimeable number, because it can be changed into a prime (122333456779) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1661800 + ... + 1733852.

It is an arithmetic number, because the mean of its divisors is an integer number (8234475228).

Almost surely, 2^122333456778 is an apocalyptic number.

122333456778 is an abundant number, since it is smaller than the sum of its proper divisors (141169750518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122333456778 is a wasteful number, since it uses less digits than its factorization.

122333456778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93838.

The product of its digits is 5080320, while the sum is 51.

Adding to 122333456778 its reverse (877654333221), we get a palindrome (999987789999).

The spelling of 122333456778 in words is "one hundred twenty-two billion, three hundred thirty-three million, four hundred fifty-six thousand, seven hundred seventy-eight".