1116221220500 has 24 divisors (see below), whose sum is σ = 2437827146664. Its totient is φ = 446488488000.

The previous prime is 1116221220467. The next prime is 1116221220551. The reversal of 1116221220500 is 50221226111.

It can be written as a sum of positive squares in 4 ways, for example, as 343007006224 + 773214214276 = 585668^2 + 879326^2 .

It is a super-3 number, since 3×1116221220500³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1116220721 + ... + 1116221720.

It is an arithmetic number, because the mean of its divisors is an integer number (101576131111).

Almost surely, 2^{1116221220500} is an apocalyptic number.

1116221220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116221220500 is an abundant number, since it is smaller than the sum of its proper divisors (1321605926164).

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

1116221220500 is a wasteful number, since it uses less digits than its factorization.

1116221220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232442460 (or 2232442448 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1116221220500 its reverse (50221226111), we get a palindrome (1166442446611).

The spelling of 1116221220500 in words is "one trillion, one hundred sixteen billion, two hundred twenty-one million, two hundred twenty thousand, five hundred".