3421221241 has 4 divisors (see below), whose sum is σ = 3421343332. Its totient is φ = 3421099152.

The previous prime is 3421221203. The next prime is 3421221247. The reversal of 3421221241 is 1421221243.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1520610025 + 1900611216 = 38995^2 + 43596^2 .

It is a cyclic number.

It is not a de Polignac number, because 3421221241 - 2¹⁵ = 3421188473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3421221247) 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, 4315 + ... + 82831.

It is an arithmetic number, because the mean of its divisors is an integer number (855335833).

Almost surely, 2^3421221241 is an apocalyptic number.

It is an amenable number.

3421221241 is a deficient number, since it is larger than the sum of its proper divisors (122091).

3421221241 is an equidigital number, since it uses as much as digits as its factorization.

3421221241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122090.

The product of its digits is 768, while the sum is 22.

The square root of 3421221241 is about 58491.2065271353. The cubic root of 3421221241 is about 1506.8165672758.

Adding to 3421221241 its reverse (1421221243), we get a palindrome (4842442484).

The spelling of 3421221241 in words is "three billion, four hundred twenty-one million, two hundred twenty-one thousand, two hundred forty-one".