3421221343 has 16 divisors (see below), whose sum is σ = 3531386880. Its totient is φ = 3312446400.

The previous prime is 3421221329. The next prime is 3421221373. The reversal of 3421221343 is 3431221243.

It is a cyclic number.

It is not a de Polignac number, because 3421221343 - 2⁵ = 3421221311 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 (3421221313) 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, 4077318 + ... + 4078156.

It is an arithmetic number, because the mean of its divisors is an integer number (220711680).

Almost surely, 2^3421221343 is an apocalyptic number.

3421221343 is a deficient number, since it is larger than the sum of its proper divisors (110165537).

3421221343 is a wasteful number, since it uses less digits than its factorization.

3421221343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518.

The product of its digits is 3456, while the sum is 25.

The square root of 3421221343 is about 58491.2073990613. The cubic root of 3421221343 is about 1506.8165822505.

Adding to 3421221343 its reverse (3431221243), we get a palindrome (6852442586).

It can be divided in two parts, 34212 and 21343, that added together give a palindrome (55555).

The spelling of 3421221343 in words is "three billion, four hundred twenty-one million, two hundred twenty-one thousand, three hundred forty-three".