1121121010111 has 4 divisors (see below), whose sum is σ = 1144974648672. Its totient is φ = 1097267371552.

The previous prime is 1121121010109. The next prime is 1121121010123. The reversal of 1121121010111 is 1110101211211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121121010111 - 2¹ = 1121121010109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121121010091 and 1121121010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121121010211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11926819210 + ... + 11926819303.

It is an arithmetic number, because the mean of its divisors is an integer number (286243662168).

Almost surely, 2^{1121121010111} is an apocalyptic number.

1121121010111 is a deficient number, since it is larger than the sum of its proper divisors (23853638561).

1121121010111 is an equidigital number, since it uses as much as digits as its factorization.

1121121010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23853638560.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1121121010111 its reverse (1110101211211), we get a palindrome (2231222221322).

The spelling of 1121121010111 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, ten thousand, one hundred eleven".