20243222 has 4 divisors (see below), whose sum is σ = 30364836. Its totient is φ = 10121610.

The previous prime is 20243219. The next prime is 20243233. The reversal of 20243222 is 22234202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22234202 = 2 ⋅11117101.

It is a self number, because there is not a number n which added to its sum of digits gives 20243222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060804 + ... + 5060807.

It is an arithmetic number, because the mean of its divisors is an integer number (7591209).

Almost surely, 2^20243222 is an apocalyptic number.

20243222 is a deficient number, since it is larger than the sum of its proper divisors (10121614).

20243222 is a wasteful number, since it uses less digits than its factorization.

20243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121613.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20243222 is about 4499.2468258587. The cubic root of 20243222 is about 272.5376745599.

Adding to 20243222 its reverse (22234202), we get a palindrome (42477424).

The spelling of 20243222 in words is "twenty million, two hundred forty-three thousand, two hundred twenty-two".