11212111012100 has 36 divisors (see below), whose sum is σ = 25610822000400. Its totient is φ = 4248799961760.

The previous prime is 11212111012073. The next prime is 11212111012163. The reversal of 11212111012100 is 121011121211.

It is a super-2 number, since 2×11212111012100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2950553630 + ... + 2950557429.

Almost surely, 2^{11212111012100} is an apocalyptic number.

11212111012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212111012100 is an abundant number, since it is smaller than the sum of its proper divisors (14398710988300).

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

11212111012100 is a wasteful number, since it uses less digits than its factorization.

11212111012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901111092 (or 5901111085 counting only the distinct ones).

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

Adding to 11212111012100 its reverse (121011121211), we get a palindrome (11333122133311).

The spelling of 11212111012100 in words is "eleven trillion, two hundred twelve billion, one hundred eleven million, twelve thousand, one hundred".