3220212121212 has 48 divisors (see below), whose sum is σ = 7520075666432. Its totient is φ = 1072511824320.

The previous prime is 3220212121201. The next prime is 3220212121219. The reversal of 3220212121212 is 2121212120223.

It is a super-2 number, since 2×3220212121212² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220212121219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129432918 + ... + 129457794.

Almost surely, 2^{3220212121212} is an apocalyptic number.

It is an amenable number.

3220212121212 is an abundant number, since it is smaller than the sum of its proper divisors (4299863545220).

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

3220212121212 is a wasteful number, since it uses less digits than its factorization.

3220212121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33418 (or 33416 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 3220212121212 its reverse (2121212120223), we get a palindrome (5341424241435).

The spelling of 3220212121212 in words is "three trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, two hundred twelve".