11112221001120 has 48 divisors (see below), whose sum is σ = 35003496155040. Its totient is φ = 2963258933504.

The previous prime is 11112221001097. The next prime is 11112221001137. The reversal of 11112221001120 is 2110012221111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11112221001120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11575229730 + ... + 11575230689.

It is an arithmetic number, because the mean of its divisors is an integer number (729239503230).

Almost surely, 2^{11112221001120} is an apocalyptic number.

11112221001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112221001120 is an abundant number, since it is smaller than the sum of its proper divisors (23891275153920).

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

11112221001120 is a wasteful number, since it uses less digits than its factorization.

11112221001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23150460437 (or 23150460429 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112221001120 its reverse (2110012221111), we get a palindrome (13222233222231).

The spelling of 11112221001120 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-one million, one thousand, one hundred twenty".