1111220011121 has 8 divisors (see below), whose sum is σ = 1264946099904. Its totient is φ = 966278270320.

The previous prime is 1111220011103. The next prime is 1111220011123. The reversal of 1111220011121 is 1211100221111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1111220011121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111220011096 and 1111220011105.

It is not an unprimeable number, because it can be changed into a prime (1111220011123) 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, 2196086726 + ... + 2196087231.

It is an arithmetic number, because the mean of its divisors is an integer number (158118262488).

Almost surely, 2^{1111220011121} is an apocalyptic number.

1111220011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111220011121 is a deficient number, since it is larger than the sum of its proper divisors (153726088783).

1111220011121 is a wasteful number, since it uses less digits than its factorization.

1111220011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392173991.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111220011121 its reverse (1211100221111), we get a palindrome (2322320232232).

The spelling of 1111220011121 in words is "one trillion, one hundred eleven billion, two hundred twenty million, eleven thousand, one hundred twenty-one".