11210212121112 has 96 divisors (see below), whose sum is σ = 31942084618080. Its totient is φ = 3547067742720.

The previous prime is 11210212121047. The next prime is 11210212121131. The reversal of 11210212121112 is 21112121201211.

It is a happy number.

11210212121112 is a `hidden beast` number, since 11 + 210 + 212 + 121 + 112 = 666.

It is a super-2 number, since 2×11210212121112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 51208308 + ... + 51426755.

It is an arithmetic number, because the mean of its divisors is an integer number (332730048105).

Almost surely, 2^{11210212121112} is an apocalyptic number.

11210212121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11210212121112 is an abundant number, since it is smaller than the sum of its proper divisors (20731872496968).

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

11210212121112 is a wasteful number, since it uses less digits than its factorization.

11210212121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102635153 (or 102635146 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11210212121112 its reverse (21112121201211), we get a palindrome (32322333322323).

The spelling of 11210212121112 in words is "eleven trillion, two hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twelve".