1220410325550 has 96 divisors (see below), whose sum is σ = 3291706504800. Its totient is φ = 297434304000.

The previous prime is 1220410325521. The next prime is 1220410325573. The reversal of 1220410325550 is 555230140221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2901325 + ... + 3295224.

It is an arithmetic number, because the mean of its divisors is an integer number (34288609425).

Almost surely, 2^{1220410325550} is an apocalyptic number.

1220410325550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220410325550 is an abundant number, since it is smaller than the sum of its proper divisors (2071296179250).

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

1220410325550 is a wasteful number, since it uses less digits than its factorization.

1220410325550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196678 (or 6196673 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1220410325550 its reverse (555230140221), we get a palindrome (1775640465771).

The spelling of 1220410325550 in words is "one trillion, two hundred twenty billion, four hundred ten million, three hundred twenty-five thousand, five hundred fifty".