2221646446500 has 96 divisors (see below), whose sum is σ = 6967083317376. Its totient is φ = 546866812800.

The previous prime is 2221646446483. The next prime is 2221646446501. The reversal of 2221646446500 is 56446461222.

It is not an unprimeable number, because it can be changed into a prime (2221646446501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 56945794 + ... + 56984793.

It is an arithmetic number, because the mean of its divisors is an integer number (72573784556).

Almost surely, 2^{2221646446500} is an apocalyptic number.

2221646446500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221646446500 is an abundant number, since it is smaller than the sum of its proper divisors (4745436870876).

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

2221646446500 is a wasteful number, since it uses less digits than its factorization.

2221646446500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113930622 (or 113930610 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 2221646446500 in words is "two trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred forty-six thousand, five hundred".