3322212221 has 4 divisors (see below), whose sum is σ = 3322991100. Its totient is φ = 3321433344.

The previous prime is 3322212209. The next prime is 3322212239. The reversal of 3322212221 is 1222122233.

It is a happy number.

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 3078696196 + 243516025 = 55486^2 + 15605^2 .

It is a cyclic number.

It is not a de Polignac number, because 3322212221 - 2¹⁴ = 3322195837 is a prime.

It is a super-2 number, since 2×3322212221² = 22074188082723505682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3322212193 and 3322212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3322292221) 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, 383006 + ... + 391583.

It is an arithmetic number, because the mean of its divisors is an integer number (830747775).

Almost surely, 2^3322212221 is an apocalyptic number.

It is an amenable number.

3322212221 is a deficient number, since it is larger than the sum of its proper divisors (778879).

3322212221 is an equidigital number, since it uses as much as digits as its factorization.

3322212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778878.

The product of its digits is 576, while the sum is 20.

The square root of 3322212221 is about 57638.6347947277. The cubic root of 3322212221 is about 1492.1384577128.

Adding to 3322212221 its reverse (1222122233), we get a palindrome (4544334454).

The spelling of 3322212221 in words is "three billion, three hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".