3452212221 has 16 divisors (see below), whose sum is σ = 4729807104. Its totient is φ = 2238110784.

The previous prime is 3452212217. The next prime is 3452212261. The reversal of 3452212221 is 1222122543.

It is not a de Polignac number, because 3452212221 - 2² = 3452212217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3452212191 and 3452212200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3452212261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241356 + ... + 255258.

It is an arithmetic number, because the mean of its divisors is an integer number (295612944).

Almost surely, 2^3452212221 is an apocalyptic number.

It is an amenable number.

3452212221 is a deficient number, since it is larger than the sum of its proper divisors (1277594883).

3452212221 is a wasteful number, since it uses less digits than its factorization.

3452212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16180.

The product of its digits is 1920, while the sum is 24.

The square root of 3452212221 is about 58755.5292802303. The cubic root of 3452212221 is about 1511.3527081332.

Adding to 3452212221 its reverse (1222122543), we get a palindrome (4674334764).

The spelling of 3452212221 in words is "three billion, four hundred fifty-two million, two hundred twelve thousand, two hundred twenty-one".