221153416 has 16 divisors (see below), whose sum is σ = 452359440. Its totient is φ = 100524240.

The previous prime is 221153393. The next prime is 221153419. The reversal of 221153416 is 614351122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221153419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256466 + ... + 1256641.

It is an arithmetic number, because the mean of its divisors is an integer number (28272465).

Almost surely, 2^221153416 is an apocalyptic number.

It is an amenable number.

221153416 is an abundant number, since it is smaller than the sum of its proper divisors (231206024).

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

221153416 is a wasteful number, since it uses less digits than its factorization.

221153416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513124 (or 2513120 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 221153416 is about 14871.2277906029. The cubic root of 221153416 is about 604.7342283697.

The spelling of 221153416 in words is "two hundred twenty-one million, one hundred fifty-three thousand, four hundred sixteen".