1220550054320 has 160 divisors (see below), whose sum is σ = 2929312512000. Its totient is φ = 472665159680.

The previous prime is 1220550054319. The next prime is 1220550054337. The reversal of 1220550054320 is 234500550221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406984181 + ... + 406987179.

It is an arithmetic number, because the mean of its divisors is an integer number (18308203200).

Almost surely, 2^{1220550054320} is an apocalyptic number.

1220550054320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220550054320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464656256000).

1220550054320 is an abundant number, since it is smaller than the sum of its proper divisors (1708762457680).

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

1220550054320 is a wasteful number, since it uses less digits than its factorization.

1220550054320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963 (or 3957 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 1220550054320 in words is "one trillion, two hundred twenty billion, five hundred fifty million, fifty-four thousand, three hundred twenty".