3214031345221 has 32 divisors (see below), whose sum is σ = 3480845488128. Its totient is φ = 2961074257920.

The previous prime is 3214031345153. The next prime is 3214031345249. The reversal of 3214031345221 is 1225431304123.

It is a cyclic number.

It is not a de Polignac number, because 3214031345221 - 2⁹ = 3214031344709 is a prime.

It is a super-2 number, since 2×3214031345221² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3214031345321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282100101 + ... + 282111493.

It is an arithmetic number, because the mean of its divisors is an integer number (108776421504).

Almost surely, 2^{3214031345221} is an apocalyptic number.

3214031345221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3214031345221 is a deficient number, since it is larger than the sum of its proper divisors (266814142907).

3214031345221 is a wasteful number, since it uses less digits than its factorization.

3214031345221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16741.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 3214031345221 its reverse (1225431304123), we get a palindrome (4439462649344).

The spelling of 3214031345221 in words is "three trillion, two hundred fourteen billion, thirty-one million, three hundred forty-five thousand, two hundred twenty-one".