220181822 has 16 divisors (see below), whose sum is σ = 384577632. Its totient is φ = 92582880.

The previous prime is 220181803. The next prime is 220181827. The reversal of 220181822 is 228181022.

It is a junction number, because it is equal to n+sod(n) for n = 220181791 and 220181800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220181827) 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, 147629 + ... + 149112.

It is an arithmetic number, because the mean of its divisors is an integer number (24036102).

Almost surely, 2^220181822 is an apocalyptic number.

220181822 is a deficient number, since it is larger than the sum of its proper divisors (164395810).

220181822 is a wasteful number, since it uses less digits than its factorization.

220181822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296803.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 220181822 is about 14838.5249266900. The cubic root of 220181822 is about 603.8473347037.

The spelling of 220181822 in words is "two hundred twenty million, one hundred eighty-one thousand, eight hundred twenty-two".