11112021120 has 64 divisors (see below), whose sum is σ = 35419573440. Its totient is φ = 2963205120.

The previous prime is 11112021103. The next prime is 11112021121. The reversal of 11112021120 is 2112021111.

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

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11112021096 and 11112021105.

It is not an unprimeable number, because it can be changed into a prime (11112021121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2891836 + ... + 2895675.

It is an arithmetic number, because the mean of its divisors is an integer number (553430835).

Almost surely, 2^11112021120 is an apocalyptic number.

11112021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112021120 is an abundant number, since it is smaller than the sum of its proper divisors (24307552320).

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

11112021120 is an equidigital number, since it uses as much as digits as its factorization.

11112021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787533 (or 5787521 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11112021120 its reverse (2112021111), we get a palindrome (13224042231).

Subtracting from 11112021120 its reverse (2112021111), we obtain a palindrome (9000000009).

The spelling of 11112021120 in words is "eleven billion, one hundred twelve million, twenty-one thousand, one hundred twenty".