11211101212100 has 72 divisors (see below), whose sum is σ = 24685407074496. Its totient is φ = 4418996400000.

The previous prime is 11211101212033. The next prime is 11211101212111. The reversal of 11211101212100 is 121210111211.

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 23 ways as a sum of consecutive naturals, for example, 499256 + ... + 4761455.

Almost surely, 2^{11211101212100} is an apocalyptic number.

11211101212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211101212100 is an abundant number, since it is smaller than the sum of its proper divisors (13474305862396).

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

11211101212100 is a wasteful number, since it uses less digits than its factorization.

11211101212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261037 (or 5261030 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11211101212100 its reverse (121210111211), we get a palindrome (11332311323311).

The spelling of 11211101212100 in words is "eleven trillion, two hundred eleven billion, one hundred one million, two hundred twelve thousand, one hundred".