19822886244100 has 27 divisors (see below), whose sum is σ = 43015759764607. Its totient is φ = 7929136688480.

The previous prime is 19822886244053. The next prime is 19822886244121. The reversal of 19822886244100 is 144268822891.

The square root of 19822886244100 is 4452290.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1685099956996 + 18137786287104 = 1298114^2 + 4258848^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44300286 + ... + 44745514.

Almost surely, 2^{19822886244100} is an apocalyptic number.

19822886244100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19822886244100 is the 4452290-th square number.

It is an amenable number.

19822886244100 is an abundant number, since it is smaller than the sum of its proper divisors (23192873520507).

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

19822886244100 is an frugal number, since it uses more digits than its factorization.

19822886244100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890472 (or 445236 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 55.

The spelling of 19822886244100 in words is "nineteen trillion, eight hundred twenty-two billion, eight hundred eighty-six million, two hundred forty-four thousand, one hundred".