20111120210200 has 96 divisors (see below), whose sum is σ = 49033325059200. Its totient is φ = 7660655170560.

The previous prime is 20111120210173. The next prime is 20111120210227. The reversal of 20111120210200 is 201202111102.

It is an interprime number because it is at equal distance from previous prime (20111120210173) and next prime (20111120210227).

It is a super-2 number, since 2×20111120210200² (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 23326152 + ... + 24172951.

It is an arithmetic number, because the mean of its divisors is an integer number (510763802700).

Almost surely, 2^{20111120210200} is an apocalyptic number.

20111120210200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111120210200 is an abundant number, since it is smaller than the sum of its proper divisors (28922204849000).

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

20111120210200 is a wasteful number, since it uses less digits than its factorization.

20111120210200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47499221 (or 47499212 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20111120210200 its reverse (201202111102), we get a palindrome (20312322321302).

The spelling of 20111120210200 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, two hundred".