23022222 has 16 divisors (see below), whose sum is σ = 46230912. Its totient is φ = 7643000.

The previous prime is 23022221. The next prime is 23022239. The reversal of 23022222 is 22222032.

23022222 is a modest number, since divided by 22222 gives 230 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022221) 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, 6138 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (2889432).

Almost surely, 2^23022222 is an apocalyptic number.

23022222 is an abundant number, since it is smaller than the sum of its proper divisors (23208690).

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

23022222 is a wasteful number, since it uses less digits than its factorization.

23022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15543.

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

The square root of 23022222 is about 4798.1477676287. The cubic root of 23022222 is about 284.4782575069.

Adding to 23022222 its reverse (22222032), we get a palindrome (45244254).

The spelling of 23022222 in words is "twenty-three million, twenty-two thousand, two hundred twenty-two".