20211011211100 has 18 divisors (see below), whose sum is σ = 43857894328304. Its totient is φ = 8084404484400.

The previous prime is 20211011211077. The next prime is 20211011211121. The reversal of 20211011211100 is 111211011202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101055055956 + ... + 101055056155.

Almost surely, 2^{20211011211100} is an apocalyptic number.

20211011211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211011211100 is an abundant number, since it is smaller than the sum of its proper divisors (23646883117204).

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

20211011211100 is a wasteful number, since it uses less digits than its factorization.

20211011211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202110112125 (or 202110112118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20211011211100 its reverse (111211011202), we get a palindrome (20322222222302).

The spelling of 20211011211100 in words is "twenty trillion, two hundred eleven billion, eleven million, two hundred eleven thousand, one hundred".