100011212200100 has 18 divisors (see below), whose sum is σ = 217024330474434. Its totient is φ = 40004484880000.

The previous prime is 100011212200073. The next prime is 100011212200117. The reversal of 100011212200100 is 1002212110001.

It can be written as a sum of positive squares in 3 ways, for example, as 15016973530276 + 84994238669824 = 3875174^2 + 9219232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500056060901 + ... + 500056061100.

Almost surely, 2^{100011212200100} is an apocalyptic number.

100011212200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100011212200100 is an abundant number, since it is smaller than the sum of its proper divisors (117013118274334).

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

100011212200100 is a wasteful number, since it uses less digits than its factorization.

100011212200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000112122015 (or 1000112122008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100011212200100 its reverse (1002212110001), we get a palindrome (101013424310101).

Subtracting from 100011212200100 its reverse (1002212110001), we obtain a palindrome (99009000090099).

The spelling of 100011212200100 in words is "one hundred trillion, eleven billion, two hundred twelve million, two hundred thousand, one hundred".