221441682 has 48 divisors (see below), whose sum is σ = 562034592. Its totient is φ = 57516480.

The previous prime is 221441681. The next prime is 221441699. The reversal of 221441682 is 286144122.

221441682 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221441681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31003 + ... + 37470.

It is an arithmetic number, because the mean of its divisors is an integer number (11709054).

Almost surely, 2^221441682 is an apocalyptic number.

221441682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221441682 is an abundant number, since it is smaller than the sum of its proper divisors (340592910).

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

221441682 is a wasteful number, since it uses less digits than its factorization.

221441682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68503 (or 68496 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 221441682 is about 14880.9167056334. The cubic root of 221441682 is about 604.9968644966.

The spelling of 221441682 in words is "two hundred twenty-one million, four hundred forty-one thousand, six hundred eighty-two".