22261362222 has 64 divisors (see below), whose sum is σ = 50717560320. Its totient is φ = 6448041600.

The previous prime is 22261362203. The next prime is 22261362241. The reversal of 22261362222 is 22226316222.

It is an interprime number because it is at equal distance from previous prime (22261362203) and next prime (22261362241).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22261362222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2589972 + ... + 2598552.

It is an arithmetic number, because the mean of its divisors is an integer number (792461880).

Almost surely, 2^22261362222 is an apocalyptic number.

22261362222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22261362222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25358780160).

22261362222 is an abundant number, since it is smaller than the sum of its proper divisors (28456198098).

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

22261362222 is a wasteful number, since it uses less digits than its factorization.

22261362222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329.

The product of its digits is 13824, while the sum is 30.

Adding to 22261362222 its reverse (22226316222), we get a palindrome (44487678444).

It can be divided in two parts, 22261 and 362222, that added together give a palindrome (384483).

The spelling of 22261362222 in words is "twenty-two billion, two hundred sixty-one million, three hundred sixty-two thousand, two hundred twenty-two".