1111211011121 has 8 divisors (see below), whose sum is σ = 1176871852320. Its totient is φ = 1046267775072.

The previous prime is 1111211011109. The next prime is 1111211011123. The reversal of 1111211011121 is 1211101121111.

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 1111211011121 - 2¹⁴ = 1111210994737 is a prime.

It is a super-2 number, since 2×1111211011121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111211011096 and 1111211011105.

It is not an unprimeable number, because it can be changed into a prime (1111211011123) 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, 179398100 + ... + 179404293.

It is an arithmetic number, because the mean of its divisors is an integer number (147108981540).

Almost surely, 2^{1111211011121} is an apocalyptic number.

It is an amenable number.

1111211011121 is a deficient number, since it is larger than the sum of its proper divisors (65660841199).

1111211011121 is a wasteful number, since it uses less digits than its factorization.

1111211011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358802575.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1111211011121 its reverse (1211101121111), we get a palindrome (2322312132232).

The spelling of 1111211011121 in words is "one trillion, one hundred eleven billion, two hundred eleven million, eleven thousand, one hundred twenty-one".