3321220231212 has 48 divisors (see below), whose sum is σ = 8348636681952. Its totient is φ = 1021545792000.

The previous prime is 3321220231207. The next prime is 3321220231243. The reversal of 3321220231212 is 2121320221233.

It is a super-2 number, since 2×3321220231212² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3400039 + ... + 4266462.

It is an arithmetic number, because the mean of its divisors is an integer number (173929930874).

Almost surely, 2^{3321220231212} is an apocalyptic number.

It is an amenable number.

3321220231212 is an abundant number, since it is smaller than the sum of its proper divisors (5027416450740).

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

3321220231212 is a wasteful number, since it uses less digits than its factorization.

3321220231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669298 (or 7669296 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 3321220231212 its reverse (2121320221233), we get a palindrome (5442540452445).

The spelling of 3321220231212 in words is "three trillion, three hundred twenty-one billion, two hundred twenty million, two hundred thirty-one thousand, two hundred twelve".