11112112021120 has 64 divisors (see below), whose sum is σ = 28979883073440. Its totient is φ = 4040768005120.

The previous prime is 11112112021111. The next prime is 11112112021163. The reversal of 11112112021120 is 2112021121111.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×11112112021120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 11112112021094 and 11112112021103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789205462 + ... + 789219541.

Almost surely, 2^{11112112021120} is an apocalyptic number.

11112112021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112112021120 is an abundant number, since it is smaller than the sum of its proper divisors (17867771052320).

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

11112112021120 is a wasteful number, since it uses less digits than its factorization.

11112112021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578425033 (or 1578425021 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11112112021120 its reverse (2112021121111), we get a palindrome (13224133142231).

Subtracting from 11112112021120 its reverse (2112021121111), we obtain a palindrome (9000090900009).

The spelling of 11112112021120 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, twenty-one thousand, one hundred twenty".