3221101212 has 24 divisors (see below), whose sum is σ = 8589603456. Its totient is φ = 920314608.

The previous prime is 3221101199. The next prime is 3221101223. The reversal of 3221101212 is 2121011223.

It is a junction number, because it is equal to n+sod(n) for n = 3221101191 and 3221101200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19173138 + ... + 19173305.

It is an arithmetic number, because the mean of its divisors is an integer number (357900144).

Almost surely, 2^3221101212 is an apocalyptic number.

It is an amenable number.

3221101212 is an abundant number, since it is smaller than the sum of its proper divisors (5368502244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221101212 is a wasteful number, since it uses less digits than its factorization.

3221101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38346457 (or 38346455 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3221101212 is about 56754.7461627660. The cubic root of 3221101212 is about 1476.8445695591.

Adding to 3221101212 its reverse (2121011223), we get a palindrome (5342112435).

The spelling of 3221101212 in words is "three billion, two hundred twenty-one million, one hundred one thousand, two hundred twelve".