3412121221 has 8 divisors (see below), whose sum is σ = 3621423384. Its totient is φ = 3203773440.

The previous prime is 3412121203. The next prime is 3412121227. The reversal of 3412121221 is 1221212143.

It can be written as a sum of positive squares in 4 ways, for example, as 72437121 + 3339684100 = 8511^2 + 57790^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3412121221 - 2⁵ = 3412121189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3412121227) 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, 231220 + ... + 245533.

It is an arithmetic number, because the mean of its divisors is an integer number (452677923).

Almost surely, 2^3412121221 is an apocalyptic number.

It is an amenable number.

3412121221 is a deficient number, since it is larger than the sum of its proper divisors (209302163).

3412121221 is a wasteful number, since it uses less digits than its factorization.

3412121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477191.

The product of its digits is 192, while the sum is 19.

The square root of 3412121221 is about 58413.3650888219. The cubic root of 3412121221 is about 1505.4793998938.

Adding to 3412121221 its reverse (1221212143), we get a palindrome (4633333364).

The spelling of 3412121221 in words is "three billion, four hundred twelve million, one hundred twenty-one thousand, two hundred twenty-one".