3201121212 has 24 divisors (see below), whose sum is σ = 7491456336. Its totient is φ = 1063872768.

The previous prime is 3201121201. The next prime is 3201121213. The reversal of 3201121212 is 2121211023.

It is a junction number, because it is equal to n+sod(n) for n = 3201121191 and 3201121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391743 + ... + 399830.

It is an arithmetic number, because the mean of its divisors is an integer number (312144014).

Almost surely, 2^3201121212 is an apocalyptic number.

It is an amenable number.

3201121212 is an abundant number, since it is smaller than the sum of its proper divisors (4290335124).

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

3201121212 is a wasteful number, since it uses less digits than its factorization.

3201121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791917 (or 791915 counting only the distinct ones).

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

The square root of 3201121212 is about 56578.4518345987. The cubic root of 3201121212 is about 1473.7846868727.

Adding to 3201121212 its reverse (2121211023), we get a palindrome (5322332235).

The spelling of 3201121212 in words is "three billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".