10211121020100 has 864 divisors, whose sum is σ = 41315401645056. Its totient is φ = 1913011430400.

The previous prime is 10211121020047. The next prime is 10211121020161. The reversal of 10211121020100 is 102012111201.

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 (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 90333817 + ... + 90446783.

It is an arithmetic number, because the mean of its divisors is an integer number (47818751904).

Almost surely, 2^{10211121020100} is an apocalyptic number.

10211121020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10211121020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20657700822528).

10211121020100 is an abundant number, since it is smaller than the sum of its proper divisors (31104280624956).

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

10211121020100 is a wasteful number, since it uses less digits than its factorization.

10211121020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113065 (or 113051 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10211121020100 its reverse (102012111201), we get a palindrome (10313133131301).

The spelling of 10211121020100 in words is "ten trillion, two hundred eleven billion, one hundred twenty-one million, twenty thousand, one hundred".