221033982 has 16 divisors (see below), whose sum is σ = 476073360. Its totient is φ = 68010432.

The previous prime is 221033971. The next prime is 221033987. The reversal of 221033982 is 289330122.

It is a happy number.

221033982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221033987) 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, 1416807 + ... + 1416962.

It is an arithmetic number, because the mean of its divisors is an integer number (29754585).

Almost surely, 2^221033982 is an apocalyptic number.

221033982 is an abundant number, since it is smaller than the sum of its proper divisors (255039378).

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

221033982 is a wasteful number, since it uses less digits than its factorization.

221033982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833787.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 221033982 is about 14867.2116417303. The cubic root of 221033982 is about 604.6253464377.

The spelling of 221033982 in words is "two hundred twenty-one million, thirty-three thousand, nine hundred eighty-two".