22022002220220 has 144 divisors (see below), whose sum is σ = 69284793072768. Its totient is φ = 5871631705920.

The previous prime is 22022002220201. The next prime is 22022002220237. The reversal of 22022002220220 is 2202220022022.

22022002220220 is a `hidden beast` number, since 2 + 2 + 0 + 220 + 0 + 2 + 220 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22022002220193 and 22022002220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31590267 + ... + 32279853.

Almost surely, 2^{22022002220220} is an apocalyptic number.

22022002220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022002220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34642396536384).

22022002220220 is an abundant number, since it is smaller than the sum of its proper divisors (47262790852548).

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

22022002220220 is a wasteful number, since it uses less digits than its factorization.

22022002220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696182 (or 696168 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22022002220220 its reverse (2202220022022), we get a palindrome (24224222242242).

The spelling of 22022002220220 in words is "twenty-two trillion, twenty-two billion, two million, two hundred twenty thousand, two hundred twenty".