219561100002 has 24 divisors (see below), whose sum is σ = 485837329536. Its totient is φ = 71629862136.

The previous prime is 219561099983. The next prime is 219561100013. The reversal of 219561100002 is 200001165912.

219561100002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 129763398 + ... + 129765089.

It is an arithmetic number, because the mean of its divisors is an integer number (20243222064).

Almost surely, 2^219561100002 is an apocalyptic number.

219561100002 is an abundant number, since it is smaller than the sum of its proper divisors (266276229534).

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

219561100002 is a wasteful number, since it uses less digits than its factorization.

219561100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259528542 (or 259528539 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 219561100002 its reverse (200001165912), we get a palindrome (419562265914).

The spelling of 219561100002 in words is "two hundred nineteen billion, five hundred sixty-one million, one hundred thousand, two".