11111222101120 has 64 divisors (see below), whose sum is σ = 26570259561600. Its totient is φ = 4443234905088.

The previous prime is 11111222101081. The next prime is 11111222101181. The reversal of 11111222101120 is 2110122211111.

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 (16).

It is a junction number, because it is equal to n+sod(n) for n = 11111222101094 and 11111222101103.

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, 177240 + ... + 4717399.

It is an arithmetic number, because the mean of its divisors is an integer number (415160305650).

Almost surely, 2^{11111222101120} is an apocalyptic number.

11111222101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111222101120 is an abundant number, since it is smaller than the sum of its proper divisors (15459037460480).

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

11111222101120 is an equidigital number, since it uses as much as digits as its factorization.

11111222101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898205 (or 4898193 counting only the distinct ones).

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

Adding to 11111222101120 its reverse (2110122211111), we get a palindrome (13221344312231).

The spelling of 11111222101120 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty".