1122101121111 has 4 divisors (see below), whose sum is σ = 1496134828152. Its totient is φ = 748067414072.

The previous prime is 1122101121077. The next prime is 1122101121139. The reversal of 1122101121111 is 1111211012211.

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 1122101121111 - 2⁶ = 1122101121047 is a prime.

It is a super-2 number, since 2×1122101121111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122101129111) 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, 187016853516 + ... + 187016853521.

It is an arithmetic number, because the mean of its divisors is an integer number (374033707038).

Almost surely, 2^{1122101121111} is an apocalyptic number.

1122101121111 is a deficient number, since it is larger than the sum of its proper divisors (374033707041).

1122101121111 is an equidigital number, since it uses as much as digits as its factorization.

1122101121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374033707040.

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

Adding to 1122101121111 its reverse (1111211012211), we get a palindrome (2233312133322).

It can be divided in two parts, 112210 and 1121111, that added together give a palindrome (1233321).

The spelling of 1122101121111 in words is "one trillion, one hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred eleven".