1111122101121 has 8 divisors (see below), whose sum is σ = 1481561949504. Its totient is φ = 740715160080.

The previous prime is 1111122101107. The next prime is 1111122101123. The reversal of 1111122101121 is 1211012211111.

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

It is not a de Polignac number, because 1111122101121 - 2⁶ = 1111122101057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111122101121.

It is not an unprimeable number, because it can be changed into a prime (1111122101123) 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, 8147941 + ... + 8283186.

It is an arithmetic number, because the mean of its divisors is an integer number (185195243688).

Almost surely, 2^{1111122101121} is an apocalyptic number.

It is an amenable number.

1111122101121 is a deficient number, since it is larger than the sum of its proper divisors (370439848383).

1111122101121 is a wasteful number, since it uses less digits than its factorization.

1111122101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16453671.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1111122101121 its reverse (1211012211111), we get a palindrome (2322134312232).

The spelling of 1111122101121 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred one thousand, one hundred twenty-one".