221950092 has 96 divisors (see below), whose sum is σ = 665183232. Its totient is φ = 55984896.

The previous prime is 221950067. The next prime is 221950093. The reversal of 221950092 is 290059122.

221950092 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 (221950093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20698 + ... + 29534.

It is an arithmetic number, because the mean of its divisors is an integer number (6928992).

Almost surely, 2^221950092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221950092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332591616).

221950092 is an abundant number, since it is smaller than the sum of its proper divisors (443233140).

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

221950092 is a wasteful number, since it uses less digits than its factorization.

221950092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8887 (or 8885 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 221950092 is about 14897.9895287921. The cubic root of 221950092 is about 605.4595165683.

The spelling of 221950092 in words is "two hundred twenty-one million, nine hundred fifty thousand, ninety-two".