20105054502200 has 48 divisors (see below), whose sum is σ = 46747631007000. Its totient is φ = 8041440417920.

The previous prime is 20105054502167. The next prime is 20105054502233. The reversal of 20105054502200 is 220545050102.

It is an interprime number because it is at equal distance from previous prime (20105054502167) and next prime (20105054502233).

It is a self number, because there is not a number n which added to its sum of digits gives 20105054502200.

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 11 ways as a sum of consecutive naturals, for example, 854915 + ... + 6398514.

Almost surely, 2^{20105054502200} is an apocalyptic number.

20105054502200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20105054502200 is an abundant number, since it is smaller than the sum of its proper divisors (26642576504800).

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

20105054502200 is a wasteful number, since it uses less digits than its factorization.

20105054502200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7267304 (or 7267295 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 20105054502200 its reverse (220545050102), we get a palindrome (20325599552302).

The spelling of 20105054502200 in words is "twenty trillion, one hundred five billion, fifty-four million, five hundred two thousand, two hundred".