1220120484 has 24 divisors (see below), whose sum is σ = 3105761568. Its totient is φ = 369733440.

The previous prime is 1220120479. The next prime is 1220120513. The reversal of 1220120484 is 4840210221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4621537 + ... + 4621800.

It is an arithmetic number, because the mean of its divisors is an integer number (129406732).

Almost surely, 2^1220120484 is an apocalyptic number.

It is an amenable number.

1220120484 is an abundant number, since it is smaller than the sum of its proper divisors (1885641084).

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

1220120484 is a wasteful number, since it uses less digits than its factorization.

1220120484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243355 (or 9243353 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 1220120484 is about 34930.2230740086. The cubic root of 1220120484 is about 1068.5649040555.

The spelling of 1220120484 in words is "one billion, two hundred twenty million, one hundred twenty thousand, four hundred eighty-four".