2134021021 has 8 divisors (see below), whose sum is σ = 2351073888. Its totient is φ = 1920810000.

The previous prime is 2134021009. The next prime is 2134021027. The reversal of 2134021021 is 1201204312.

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 2134021021 - 2⁵ = 2134020989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2134020986 and 2134021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134021027) 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, 959295 + ... + 961516.

It is an arithmetic number, because the mean of its divisors is an integer number (293884236).

Almost surely, 2^2134021021 is an apocalyptic number.

It is an amenable number.

2134021021 is a deficient number, since it is larger than the sum of its proper divisors (217052867).

2134021021 is a wasteful number, since it uses less digits than its factorization.

2134021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920923.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2134021021 is about 46195.4653726965. The cubic root of 2134021021 is about 1287.4574886017.

Adding to 2134021021 its reverse (1201204312), we get a palindrome (3335225333).

The spelling of 2134021021 in words is "two billion, one hundred thirty-four million, twenty-one thousand, twenty-one".