20444122212200 has 48 divisors (see below), whose sum is σ = 47544808267500. Its totient is φ = 8175545809920.

The previous prime is 20444122212197. The next prime is 20444122212209. The reversal of 20444122212200 is 221222144402.

It can be written as a sum of positive squares in 6 ways, for example, as 12040025575876 + 8404096636324 = 3469874^2 + 2898982^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20444122212200.

It is not an unprimeable number, because it can be changed into a prime (20444122212209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12364475 + ... + 13920074.

Almost surely, 2^{20444122212200} is an apocalyptic number.

20444122212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20444122212200 is an abundant number, since it is smaller than the sum of its proper divisors (27100686055300).

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

20444122212200 is a wasteful number, since it uses less digits than its factorization.

20444122212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26288454 (or 26288445 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 20444122212200 its reverse (221222144402), we get a palindrome (20665344356602).

The spelling of 20444122212200 in words is "twenty trillion, four hundred forty-four billion, one hundred twenty-two million, two hundred twelve thousand, two hundred".