3223121213 has 4 divisors (see below), whose sum is σ = 3471053628. Its totient is φ = 2975188800.

The previous prime is 3223121203. The next prime is 3223121263. The reversal of 3223121213 is 3121213223.

3223121213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1997911204 + 1225210009 = 44698^2 + 35003^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223121213 - 2⁴ = 3223121197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223121203) 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, 123966188 + ... + 123966213.

It is an arithmetic number, because the mean of its divisors is an integer number (867763407).

Almost surely, 2^3223121213 is an apocalyptic number.

It is an amenable number.

3223121213 is a deficient number, since it is larger than the sum of its proper divisors (247932415).

3223121213 is a wasteful number, since it uses less digits than its factorization.

3223121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247932414.

The product of its digits is 432, while the sum is 20.

The square root of 3223121213 is about 56772.5392509442. The cubic root of 3223121213 is about 1477.1532221926.

Adding to 3223121213 its reverse (3121213223), we get a palindrome (6344334436).

The spelling of 3223121213 in words is "three billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred thirteen".