220406822 has 4 divisors (see below), whose sum is σ = 330610236. Its totient is φ = 110203410.

The previous prime is 220406801. The next prime is 220406867. The reversal of 220406822 is 228604022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228604022 = 2 ⋅114302011.

It is a junction number, because it is equal to n+sod(n) for n = 220406791 and 220406800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55101704 + ... + 55101707.

It is an arithmetic number, because the mean of its divisors is an integer number (82652559).

Almost surely, 2^220406822 is an apocalyptic number.

220406822 is a deficient number, since it is larger than the sum of its proper divisors (110203414).

220406822 is a wasteful number, since it uses less digits than its factorization.

220406822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110203413.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 220406822 is about 14846.1046069331. The cubic root of 220406822 is about 604.0529517339.

The spelling of 220406822 in words is "two hundred twenty million, four hundred six thousand, eight hundred twenty-two".