3213415021 has 8 divisors (see below), whose sum is σ = 3403492344. Its totient is φ = 3023454720.

The previous prime is 3213415001. The next prime is 3213415097. The reversal of 3213415021 is 1205143123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 570015625 + 2643399396 = 23875^2 + 51414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3213415021 - 2¹³ = 3213406829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3213414983 and 3213415001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213415001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30831 + ... + 85891.

It is an arithmetic number, because the mean of its divisors is an integer number (425436543).

Almost surely, 2^3213415021 is an apocalyptic number.

It is an amenable number.

3213415021 is a deficient number, since it is larger than the sum of its proper divisors (190077323).

3213415021 is a wasteful number, since it uses less digits than its factorization.

3213415021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58511.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3213415021 is about 56686.9916382939. The cubic root of 3213415021 is about 1475.6689519146.

Adding to 3213415021 its reverse (1205143123), we get a palindrome (4418558144).

The spelling of 3213415021 in words is "three billion, two hundred thirteen million, four hundred fifteen thousand, twenty-one".