122760820266 has 64 divisors (see below), whose sum is σ = 283682856960. Its totient is φ = 34689441600.

The previous prime is 122760820261. The next prime is 122760820267. The reversal of 122760820266 is 662028067221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (122760820261) 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 31 ways as a sum of consecutive naturals, for example, 4001895 + ... + 4032453.

It is an arithmetic number, because the mean of its divisors is an integer number (4432544640).

Almost surely, 2^122760820266 is an apocalyptic number.

122760820266 is an abundant number, since it is smaller than the sum of its proper divisors (160922036694).

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

122760820266 is a wasteful number, since it uses less digits than its factorization.

122760820266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31619.

The product of its (nonzero) digits is 193536, while the sum is 42.

Adding to 122760820266 its reverse (662028067221), we get a palindrome (784788887487).

The spelling of 122760820266 in words is "one hundred twenty-two billion, seven hundred sixty million, eight hundred twenty thousand, two hundred sixty-six".