219920822 has 32 divisors (see below), whose sum is σ = 374760864. Its totient is φ = 95904000.

The previous prime is 219920809. The next prime is 219920893. The reversal of 219920822 is 228029912.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57572 + ... + 61272.

It is an arithmetic number, because the mean of its divisors is an integer number (11711277).

Almost surely, 2^219920822 is an apocalyptic number.

219920822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

219920822 is a deficient number, since it is larger than the sum of its proper divisors (154840042).

219920822 is a wasteful number, since it uses less digits than its factorization.

219920822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 219920822 is about 14829.7276441612. The cubic root of 219920822 is about 603.6086433837.

The spelling of 219920822 in words is "two hundred nineteen million, nine hundred twenty thousand, eight hundred twenty-two".