2121021014 has 16 divisors (see below), whose sum is σ = 3849920928. Its totient is φ = 855537792.

The previous prime is 2121021013. The next prime is 2121021043. The reversal of 2121021014 is 4101201212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 2121021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121021013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4455689 + ... + 4456164.

It is an arithmetic number, because the mean of its divisors is an integer number (240620058).

Almost surely, 2^2121021014 is an apocalyptic number.

2121021014 is a deficient number, since it is larger than the sum of its proper divisors (1728899914).

2121021014 is a wasteful number, since it uses less digits than its factorization.

2121021014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8911879.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2121021014 is about 46054.5439017693. The cubic root of 2121021014 is about 1284.8378552595.

Adding to 2121021014 its reverse (4101201212), we get a palindrome (6222222226).

It can be divided in two parts, 21210 and 21014, that added together give a palindrome (42224).

The spelling of 2121021014 in words is "two billion, one hundred twenty-one million, twenty-one thousand, fourteen".