2216336121 has 64 divisors (see below), whose sum is σ = 3561062400. Its totient is φ = 1357233408.

The previous prime is 2216336113. The next prime is 2216336153. The reversal of 2216336121 is 1216336122.

2216336121 is a `hidden beast` number, since 2 + 2 + 1 + 633 + 6 + 1 + 21 = 666.

It is not a de Polignac number, because 2216336121 - 2³ = 2216336113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2216336191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6038880 + ... + 6039246.

It is an arithmetic number, because the mean of its divisors is an integer number (55641600).

Almost surely, 2^2216336121 is an apocalyptic number.

It is an amenable number.

2216336121 is a deficient number, since it is larger than the sum of its proper divisors (1344726279).

2216336121 is a wasteful number, since it uses less digits than its factorization.

2216336121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 669 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2216336121 is about 47077.9791516161. The cubic root of 2216336121 is about 1303.8026962654.

Subtracting from 2216336121 its reverse (1216336122), we obtain a palindrome (999999999).

The spelling of 2216336121 in words is "two billion, two hundred sixteen million, three hundred thirty-six thousand, one hundred twenty-one".