22244222 has 64 divisors (see below), whose sum is σ = 46061568. Its totient is φ = 7776000.

The previous prime is 22244221. The next prime is 22244227.

22244222 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22244194 and 22244203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81947 + ... + 82217.

It is an arithmetic number, because the mean of its divisors is an integer number (719712).

Almost surely, 2^22244222 is an apocalyptic number.

22244222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22244222 is an abundant number, since it is smaller than the sum of its proper divisors (23817346).

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

22244222 is a wasteful number, since it uses less digits than its factorization.

22244222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 1024, while the sum is 20.

The square root of 22244222 is about 4716.3780594859. The cubic root of 22244222 is about 281.2369678241.

It can be divided in two parts, 2224 and 4222, that added together give a palindrome (6446).

The spelling of 22244222 in words is "twenty-two million, two hundred forty-four thousand, two hundred twenty-two".