1111120021121 has 8 divisors (see below), whose sum is σ = 1212922675488. Its totient is φ = 1009449324000.

The previous prime is 1111120021103. The next prime is 1111120021201. The reversal of 1111120021121 is 1211200211111.

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

It is a cyclic number.

It is not a de Polignac number, because 1111120021121 - 2³⁰ = 1110046279297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111120021096 and 1111120021105.

It is not an unprimeable number, because it can be changed into a prime (1111120021321) 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, 32971700 + ... + 33005381.

It is an arithmetic number, because the mean of its divisors is an integer number (151615334436).

Almost surely, 2^{1111120021121} is an apocalyptic number.

1111120021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111120021121 is a deficient number, since it is larger than the sum of its proper divisors (101802654367).

1111120021121 is a wasteful number, since it uses less digits than its factorization.

1111120021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65978623.

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

Adding to 1111120021121 its reverse (1211200211111), we get a palindrome (2322320232232).

The spelling of 1111120021121 in words is "one trillion, one hundred eleven billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".