1122011121 has 32 divisors (see below), whose sum is σ = 1883667456. Its totient is φ = 577080000.

The previous prime is 1122011089. The next prime is 1122011129. The reversal of 1122011121 is 1211102211.

It is not a de Polignac number, because 1122011121 - 2⁵ = 1122011089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122011097 and 1122011106.

It is not an unprimeable number, because it can be changed into a prime (1122011129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715 + ... + 47376.

It is an arithmetic number, because the mean of its divisors is an integer number (58864608).

Almost surely, 2^1122011121 is an apocalyptic number.

1122011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122011121 is a deficient number, since it is larger than the sum of its proper divisors (761656335).

1122011121 is a wasteful number, since it uses less digits than its factorization.

1122011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48213.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1122011121 is about 33496.4344520428. The cubic root of 1122011121 is about 1039.1200399941.

Adding to 1122011121 its reverse (1211102211), we get a palindrome (2333113332).

The spelling of 1122011121 in words is "one billion, one hundred twenty-two million, eleven thousand, one hundred twenty-one".