3013213221 has 6 divisors (see below), whose sum is σ = 4352419110. Its totient is φ = 2008808808.

The previous prime is 3013213201. The next prime is 3013213243. The reversal of 3013213221 is 1223123103.

It can be written as a sum of positive squares in only one way, i.e., 2314668321 + 698544900 = 48111^2 + 26430^2 .

It is not a de Polignac number, because 3013213221 - 2¹⁰ = 3013212197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3013213194 and 3013213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3013213201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167400726 + ... + 167400743.

It is an arithmetic number, because the mean of its divisors is an integer number (725403185).

Almost surely, 2^3013213221 is an apocalyptic number.

It is an amenable number.

3013213221 is a deficient number, since it is larger than the sum of its proper divisors (1339205889).

3013213221 is a wasteful number, since it uses less digits than its factorization.

3013213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334801475 (or 334801472 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3013213221 is about 54892.7428810039. The cubic root of 3013213221 is about 1444.3638872692.

Adding to 3013213221 its reverse (1223123103), we get a palindrome (4236336324).

The spelling of 3013213221 in words is "three billion, thirteen million, two hundred thirteen thousand, two hundred twenty-one".