3213221434340 has 48 divisors (see below), whose sum is σ = 6762340166400. Its totient is φ = 1282513919232.

The previous prime is 3213221434327. The next prime is 3213221434349. The reversal of 3213221434340 is 434341223123.

It is a super-2 number, since 2×3213221434340² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3213221434297 and 3213221434306.

It is not an unprimeable number, because it can be changed into a prime (3213221434349) 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, 34074776 + ... + 34168944.

It is an arithmetic number, because the mean of its divisors is an integer number (140882086800).

Almost surely, 2^{3213221434340} is an apocalyptic number.

It is an amenable number.

3213221434340 is an abundant number, since it is smaller than the sum of its proper divisors (3549118732060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213221434340 is a wasteful number, since it uses less digits than its factorization.

3213221434340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97844 (or 97842 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 3213221434340 its reverse (434341223123), we get a palindrome (3647562657463).

The spelling of 3213221434340 in words is "three trillion, two hundred thirteen billion, two hundred twenty-one million, four hundred thirty-four thousand, three hundred forty".