78110220112 has 20 divisors (see below), whose sum is σ = 152130905856. Its totient is φ = 38850631520.

The previous prime is 78110220107. The next prime is 78110220113. The reversal of 78110220112 is 21102201187.

It is a happy number.

It is a super-2 number, since 2×78110220112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78110220113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12776758 + ... + 12782869.

Almost surely, 2^78110220112 is an apocalyptic number.

It is an amenable number.

78110220112 is a deficient number, since it is larger than the sum of its proper divisors (74020685744).

78110220112 is a wasteful number, since it uses less digits than its factorization.

78110220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25559826 (or 25559820 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 78110220112 its reverse (21102201187), we get a palindrome (99212421299).

The spelling of 78110220112 in words is "seventy-eight billion, one hundred ten million, two hundred twenty thousand, one hundred twelve".