3340242221 has 4 divisors (see below), whose sum is σ = 3340522944. Its totient is φ = 3339961500.

The previous prime is 3340242203. The next prime is 3340242233. The reversal of 3340242221 is 1222420433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3340242221 is a prime.

It is a super-2 number, since 2×3340242221² = 22314436189902025682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3340242271) 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, 121685 + ... + 146586.

It is an arithmetic number, because the mean of its divisors is an integer number (835130736).

Almost surely, 2^3340242221 is an apocalyptic number.

It is an amenable number.

3340242221 is a deficient number, since it is larger than the sum of its proper divisors (280723).

3340242221 is a wasteful number, since it uses less digits than its factorization.

3340242221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280722.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3340242221 is about 57794.8286700463. The cubic root of 3340242221 is about 1494.8329207061.

Adding to 3340242221 its reverse (1222420433), we get a palindrome (4562662654).

The spelling of 3340242221 in words is "three billion, three hundred forty million, two hundred forty-two thousand, two hundred twenty-one".