3021212213 has 4 divisors (see below), whose sum is σ = 3022208748. Its totient is φ = 3020215680.

The previous prime is 3021212203. The next prime is 3021212261. The reversal of 3021212213 is 3122121203.

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 2301792529 + 719419684 = 47977^2 + 26822^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021212213 - 2²⁰ = 3020163637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3021212191 and 3021212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021212203) 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, 493706 + ... + 499787.

It is an arithmetic number, because the mean of its divisors is an integer number (755552187).

Almost surely, 2^3021212213 is an apocalyptic number.

It is an amenable number.

3021212213 is a deficient number, since it is larger than the sum of its proper divisors (996535).

3021212213 is an equidigital number, since it uses as much as digits as its factorization.

3021212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996534.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3021212213 is about 54965.5547866116. The cubic root of 3021212213 is about 1445.6408460025.

Adding to 3021212213 its reverse (3122121203), we get a palindrome (6143333416).

The spelling of 3021212213 in words is "three billion, twenty-one million, two hundred twelve thousand, two hundred thirteen".