3351213421 has 4 divisors (see below), whose sum is σ = 3352104000. Its totient is φ = 3350322844.

The previous prime is 3351213403. The next prime is 3351213427. The reversal of 3351213421 is 1243121533.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1243121533 = 17477 ⋅71129.

It is a cyclic number.

It is not a de Polignac number, because 3351213421 - 2¹¹ = 3351211373 is a prime.

It is a super-2 number, since 2×3351213421² = 22461262786181046482, 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 (3351213427) 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, 439621 + ... + 447178.

It is an arithmetic number, because the mean of its divisors is an integer number (838026000).

Almost surely, 2^3351213421 is an apocalyptic number.

It is an amenable number.

3351213421 is a deficient number, since it is larger than the sum of its proper divisors (890579).

3351213421 is an equidigital number, since it uses as much as digits as its factorization.

3351213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890578.

The product of its digits is 2160, while the sum is 25.

The square root of 3351213421 is about 57889.6659257937. The cubic root of 3351213421 is about 1496.4677510443.

Adding to 3351213421 its reverse (1243121533), we get a palindrome (4594334954).

The spelling of 3351213421 in words is "three billion, three hundred fifty-one million, two hundred thirteen thousand, four hundred twenty-one".