20000220100984 has 32 divisors (see below), whose sum is σ = 39706612963920. Its totient is φ = 9411798678016.

The previous prime is 20000220100979. The next prime is 20000220100997. The reversal of 20000220100984 is 48900102200002.

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, 21056382 + ... + 21985714.

Almost surely, 2^{20000220100984} is an apocalyptic number.

It is an amenable number.

20000220100984 is a deficient number, since it is larger than the sum of its proper divisors (19706392862936).

20000220100984 is a wasteful number, since it uses less digits than its factorization.

20000220100984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087599 (or 1087595 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 20000220100984 its reverse (48900102200002), we get a palindrome (68900322300986).

The spelling of 20000220100984 in words is "twenty trillion, two hundred twenty million, one hundred thousand, nine hundred eighty-four".