11121112122210 has 96 divisors (see below), whose sum is σ = 29750798645568. Its totient is φ = 2880657924480.

The previous prime is 11121112122209. The next prime is 11121112122223. The reversal of 11121112122210 is 1222121112111.

It is a happy number.

11121112122210 is a `hidden beast` number, since 111 + 211 + 12 + 122 + 210 = 666.

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

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 7237852 + ... + 8638791.

It is an arithmetic number, because the mean of its divisors is an integer number (309904152558).

Almost surely, 2^{11121112122210} is an apocalyptic number.

11121112122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121112122210 is an abundant number, since it is smaller than the sum of its proper divisors (18629686523358).

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

11121112122210 is a wasteful number, since it uses less digits than its factorization.

11121112122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15876880 (or 15876877 counting only the distinct ones).

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

Adding to 11121112122210 its reverse (1222121112111), we get a palindrome (12343233234321).

The spelling of 11121112122210 in words is "eleven trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred ten".