1220875110 has 96 divisors (see below), whose sum is σ = 3906826560. Its totient is φ = 257589504.

The previous prime is 1220875093. The next prime is 1220875129. The reversal of 1220875110 is 115780221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 66345 + ... + 82724.

It is an arithmetic number, because the mean of its divisors is an integer number (40696110).

Almost surely, 2^1220875110 is an apocalyptic number.

1220875110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220875110 is an abundant number, since it is smaller than the sum of its proper divisors (2685951450).

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

1220875110 is a wasteful number, since it uses less digits than its factorization.

1220875110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149102 (or 149099 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1220875110 is about 34941.0233107160. The cubic root of 1220875110 is about 1068.7851557123.

The spelling of 1220875110 in words is "one billion, two hundred twenty million, eight hundred seventy-five thousand, one hundred ten".