3216616121 has 8 divisors (see below), whose sum is σ = 3406702824. Its totient is φ = 3026626560.

The previous prime is 3216616111. The next prime is 3216616129. The reversal of 3216616121 is 1216166123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 228463225 + 2988152896 = 15115^2 + 54664^2 .

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 3216616121 - 2¹⁰ = 3216615097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3216616129) 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, 50501 + ... + 94781.

It is an arithmetic number, because the mean of its divisors is an integer number (425837853).

Almost surely, 2^3216616121 is an apocalyptic number.

It is an amenable number.

3216616121 is a deficient number, since it is larger than the sum of its proper divisors (190086703).

3216616121 is a wasteful number, since it uses less digits than its factorization.

3216616121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48571.

The product of its digits is 2592, while the sum is 29.

The square root of 3216616121 is about 56715.2194829571. The cubic root of 3216616121 is about 1476.1587938393.

The spelling of 3216616121 in words is "three billion, two hundred sixteen million, six hundred sixteen thousand, one hundred twenty-one".