20221211000100 has 144 divisors (see below), whose sum is σ = 63984665094336. Its totient is φ = 4889886720000.

The previous prime is 20221211000069. The next prime is 20221211000129. The reversal of 20221211000100 is 100011212202.

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

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 47 ways as a sum of consecutive naturals, for example, 6317149 + ... + 8963748.

It is an arithmetic number, because the mean of its divisors is an integer number (444337952044).

Almost surely, 2^{20221211000100} is an apocalyptic number.

20221211000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221211000100 is an abundant number, since it is smaller than the sum of its proper divisors (43763454094236).

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

20221211000100 is a wasteful number, since it uses less digits than its factorization.

20221211000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15281326 (or 15281319 counting only the distinct ones).

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

Adding to 20221211000100 its reverse (100011212202), we get a palindrome (20321222212302).

The spelling of 20221211000100 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, one hundred", and thus it is an aban number.