1220552415250 has 32 divisors (see below), whose sum is σ = 2611284713856. Its totient is φ = 418475113200.

The previous prime is 1220552415217. The next prime is 1220552415287. The reversal of 1220552415250 is 525142550221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348727512 + ... + 348731011.

It is an arithmetic number, because the mean of its divisors is an integer number (81602647308).

Almost surely, 2^{1220552415250} is an apocalyptic number.

1220552415250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220552415250 is an abundant number, since it is smaller than the sum of its proper divisors (1390732298606).

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

1220552415250 is an equidigital number, since it uses as much as digits as its factorization.

1220552415250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697458547 (or 697458537 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 1220552415250 its reverse (525142550221), we get a palindrome (1745694965471).

The spelling of 1220552415250 in words is "one trillion, two hundred twenty billion, five hundred fifty-two million, four hundred fifteen thousand, two hundred fifty".