2121321114 has 48 divisors (see below), whose sum is σ = 5077537920. Its totient is φ = 634682880.

The previous prime is 2121321113. The next prime is 2121321143. The reversal of 2121321114 is 4111231212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2121321113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52167 + ... + 83450.

It is an arithmetic number, because the mean of its divisors is an integer number (105782040).

Almost surely, 2^2121321114 is an apocalyptic number.

2121321114 is an abundant number, since it is smaller than the sum of its proper divisors (2956216806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121321114 is a wasteful number, since it uses less digits than its factorization.

2121321114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135715 (or 135712 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2121321114 is about 46057.8018798119. The cubic root of 2121321114 is about 1284.8984489790.

Adding to 2121321114 its reverse (4111231212), we get a palindrome (6232552326).

The spelling of 2121321114 in words is "two billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred fourteen".