2111332121 has 8 divisors (see below), whose sum is σ = 2166003840. Its totient is φ = 2056913712.

The previous prime is 2111332103. The next prime is 2111332129. The reversal of 2111332121 is 1212331112.

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 2111332121 - 2⁶ = 2111332057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111332121.

It is not an unprimeable number, because it can be changed into a prime (2111332129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46385 + ... + 79838.

It is an arithmetic number, because the mean of its divisors is an integer number (270750480).

Almost surely, 2^2111332121 is an apocalyptic number.

It is an amenable number.

2111332121 is a deficient number, since it is larger than the sum of its proper divisors (54671719).

2111332121 is a wasteful number, since it uses less digits than its factorization.

2111332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126655.

The product of its digits is 72, while the sum is 17.

The square root of 2111332121 is about 45949.2341720730. The cubic root of 2111332121 is about 1282.8784750113.

Adding to 2111332121 its reverse (1212331112), we get a palindrome (3323663233).

The spelling of 2111332121 in words is "two billion, one hundred eleven million, three hundred thirty-two thousand, one hundred twenty-one".