11121233212170 has 192 divisors, whose sum is σ = 30399686553600. Its totient is φ = 2815364407680.

The previous prime is 11121233212157. The next prime is 11121233212171. The reversal of 11121233212170 is 7121233212111.

11121233212170 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 123 + 321 + 217 + 0 = 666.

11121233212170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11121233212170² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11121233212171) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1320964221 + ... + 1320972639.

It is an arithmetic number, because the mean of its divisors is an integer number (158331700800).

Almost surely, 2^{11121233212170} is an apocalyptic number.

11121233212170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121233212170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15199843276800).

11121233212170 is an abundant number, since it is smaller than the sum of its proper divisors (19278453341430).

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

11121233212170 is a wasteful number, since it uses less digits than its factorization.

11121233212170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13185 (or 13182 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

Adding to 11121233212170 its reverse (7121233212111), we get a palindrome (18242466424281).

The spelling of 11121233212170 in words is "eleven trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, one hundred seventy".