20120211100200 has 96 divisors (see below), whose sum is σ = 62455050344160. Its totient is φ = 5358301804800.

The previous prime is 20120211100117. The next prime is 20120211100201. The reversal of 20120211100200 is 200111202102.

It is a super-2 number, since 2×20120211100200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20120211100201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21694866 + ... + 22603265.

It is an arithmetic number, because the mean of its divisors is an integer number (650573441085).

Almost surely, 2^{20120211100200} is an apocalyptic number.

20120211100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120211100200 is an abundant number, since it is smaller than the sum of its proper divisors (42334839243960).

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

20120211100200 is a wasteful number, since it uses less digits than its factorization.

20120211100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44298907 (or 44298898 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20120211100200 its reverse (200111202102), we get a palindrome (20320322302302).

The spelling of 20120211100200 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, one hundred thousand, two hundred".