1220550323450 has 48 divisors (see below), whose sum is σ = 2403943816320. Its totient is φ = 459467339520.

The previous prime is 1220550323431. The next prime is 1220550323453. The reversal of 1220550323450 is 543230550221.

It is not an unprimeable number, because it can be changed into a prime (1220550323453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13486049 + ... + 13576251.

It is an arithmetic number, because the mean of its divisors is an integer number (50082162840).

Almost surely, 2^{1220550323450} is an apocalyptic number.

1220550323450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220550323450 is a deficient number, since it is larger than the sum of its proper divisors (1183393492870).

1220550323450 is a wasteful number, since it uses less digits than its factorization.

1220550323450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106151 (or 106146 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 1220550323450 its reverse (543230550221), we get a palindrome (1763780873671).

The spelling of 1220550323450 in words is "one trillion, two hundred twenty billion, five hundred fifty million, three hundred twenty-three thousand, four hundred fifty".