3431402221 has 4 divisors (see below), whose sum is σ = 3695356252. Its totient is φ = 3167448192.

The previous prime is 3431402207. The next prime is 3431402243. The reversal of 3431402221 is 1222041343.

3431402221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 960318121 + 2471084100 = 30989^2 + 49710^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431402221 - 2⁵ = 3431402189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3431402192 and 3431402201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431402251) 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, 131976996 + ... + 131977021.

It is an arithmetic number, because the mean of its divisors is an integer number (923839063).

Almost surely, 2^3431402221 is an apocalyptic number.

It is an amenable number.

3431402221 is a deficient number, since it is larger than the sum of its proper divisors (263954031).

3431402221 is a wasteful number, since it uses less digits than its factorization.

3431402221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263954030.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3431402221 is about 58578.1718816830. The cubic root of 3431402221 is about 1508.3097647902.

Adding to 3431402221 its reverse (1222041343), we get a palindrome (4653443564).

The spelling of 3431402221 in words is "three billion, four hundred thirty-one million, four hundred two thousand, two hundred twenty-one".