20322222 has 16 divisors (see below), whose sum is σ = 40702080. Its totient is φ = 6764472.

The previous prime is 20322199. The next prime is 20322227. The reversal of 20322222 is 22222302.

20322222 is a modest number, since divided by 2222 gives 2032 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322227) 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, 3183 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (2543880).

Almost surely, 2^20322222 is an apocalyptic number.

20322222 is an abundant number, since it is smaller than the sum of its proper divisors (20379858).

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

20322222 is a wasteful number, since it uses less digits than its factorization.

20322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20322222 is about 4508.0175243670. The cubic root of 20322222 is about 272.8917441673.

Adding to 20322222 its reverse (22222302), we get a palindrome (42544524).

The spelling of 20322222 in words is "twenty million, three hundred twenty-two thousand, two hundred twenty-two".