2134243010221 has 16 divisors (see below), whose sum is σ = 2462946410880. Its totient is φ = 1811557797120.

The previous prime is 2134243010209. The next prime is 2134243010239. The reversal of 2134243010221 is 1220103424312.

It is a cyclic number.

It is not a de Polignac number, because 2134243010221 - 2⁵ = 2134243010189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134243010201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2328415 + ... + 3112876.

It is an arithmetic number, because the mean of its divisors is an integer number (153934150680).

Almost surely, 2^{2134243010221} is an apocalyptic number.

It is an amenable number.

2134243010221 is a deficient number, since it is larger than the sum of its proper divisors (328703400659).

2134243010221 is a wasteful number, since it uses less digits than its factorization.

2134243010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441844.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2134243010221 its reverse (1220103424312), we get a palindrome (3354346434533).

The spelling of 2134243010221 in words is "two trillion, one hundred thirty-four billion, two hundred forty-three million, ten thousand, two hundred twenty-one".