100121102211100 has 18 divisors (see below), whose sum is σ = 217262791798304. Its totient is φ = 40048440884400.

The previous prime is 100121102211047. The next prime is 100121102211127. The reversal of 100121102211100 is 1112201121001.

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, 500605510956 + ... + 500605511155.

Almost surely, 2^{100121102211100} is an apocalyptic number.

100121102211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121102211100 is an abundant number, since it is smaller than the sum of its proper divisors (117141689587204).

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

100121102211100 is a wasteful number, since it uses less digits than its factorization.

100121102211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001211022125 (or 1001211022118 counting only the distinct ones).

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

Adding to 100121102211100 its reverse (1112201121001), we get a palindrome (101233303332101).

The spelling of 100121102211100 in words is "one hundred trillion, one hundred twenty-one billion, one hundred two million, two hundred eleven thousand, one hundred".