2234234540221 has 4 divisors (see below), whose sum is σ = 2234302862652. Its totient is φ = 2234166217792.

The previous prime is 2234234540207. The next prime is 2234234540249. The reversal of 2234234540221 is 1220454324322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2179063107225 + 55171432996 = 1476165^2 + 234886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2234234540221 - 2⁵ = 2234234540189 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 (2234234540821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34112140 + ... + 34177573.

It is an arithmetic number, because the mean of its divisors is an integer number (558575715663).

Almost surely, 2^{2234234540221} is an apocalyptic number.

It is an amenable number.

2234234540221 is a deficient number, since it is larger than the sum of its proper divisors (68322431).

2234234540221 is an equidigital number, since it uses as much as digits as its factorization.

2234234540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68322430.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 2234234540221 its reverse (1220454324322), we get a palindrome (3454688864543).

The spelling of 2234234540221 in words is "two trillion, two hundred thirty-four billion, two hundred thirty-four million, five hundred forty thousand, two hundred twenty-one".