22071822 has 16 divisors (see below), whose sum is σ = 44640720. Its totient is φ = 7274432.

The previous prime is 22071809. The next prime is 22071839. The reversal of 22071822 is 22817022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22071792 and 22071801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20133 + ... + 21200.

It is an arithmetic number, because the mean of its divisors is an integer number (2790045).

Almost surely, 2^22071822 is an apocalyptic number.

22071822 is an abundant number, since it is smaller than the sum of its proper divisors (22568898).

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

22071822 is a wasteful number, since it uses less digits than its factorization.

22071822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41427.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22071822 is about 4698.0657722088. The cubic root of 22071822 is about 280.5085231633.

Adding to 22071822 its reverse (22817022), we get a palindrome (44888844).

The spelling of 22071822 in words is "twenty-two million, seventy-one thousand, eight hundred twenty-two".