3221212123223 has 4 divisors (see below), whose sum is σ = 3221359508280. Its totient is φ = 3221064738168.

The previous prime is 3221212123193. The next prime is 3221212123229. The reversal of 3221212123223 is 3223212121223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221212123223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221212123192 and 3221212123201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221212123229) 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, 73659740 + ... + 73703457.

It is an arithmetic number, because the mean of its divisors is an integer number (805339877070).

Almost surely, 2^{3221212123223} is an apocalyptic number.

3221212123223 is a deficient number, since it is larger than the sum of its proper divisors (147385057).

3221212123223 is a wasteful number, since it uses less digits than its factorization.

3221212123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147385056.

The product of its digits is 3456, while the sum is 26.

Adding to 3221212123223 its reverse (3223212121223), we get a palindrome (6444424244446).

The spelling of 3221212123223 in words is "three trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty-three thousand, two hundred twenty-three".