1220510112 has 24 divisors (see below), whose sum is σ = 3203839296. Its totient is φ = 406836672.

The previous prime is 1220510069. The next prime is 1220510113. The reversal of 1220510112 is 2110150221.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1220510091 and 1220510100.

It is not an unprimeable number, because it can be changed into a prime (1220510113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6356728 + ... + 6356919.

It is an arithmetic number, because the mean of its divisors is an integer number (133493304).

Almost surely, 2^1220510112 is an apocalyptic number.

1220510112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220510112 is an abundant number, since it is smaller than the sum of its proper divisors (1983329184).

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

1220510112 is a wasteful number, since it uses less digits than its factorization.

1220510112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713660 (or 12713652 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1220510112 is about 34935.7998620326. The cubic root of 1220510112 is about 1068.6786355823.

Adding to 1220510112 its reverse (2110150221), we get a palindrome (3330660333).

The spelling of 1220510112 in words is "one billion, two hundred twenty million, five hundred ten thousand, one hundred twelve".