22222101222220 has 24 divisors (see below), whose sum is σ = 46666556445600. Its totient is φ = 8888813083392.

The previous prime is 22222101222199. The next prime is 22222101222227. The reversal of 22222101222220 is 2222210122222.

It is a junction number, because it is equal to n+sod(n) for n = 22222101222191 and 22222101222200.

It is not an unprimeable number, because it can be changed into a prime (22222101222227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5723716 + ... + 8786644.

It is an arithmetic number, because the mean of its divisors is an integer number (1944439851900).

Almost surely, 2^{22222101222220} is an apocalyptic number.

22222101222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222101222220 is an abundant number, since it is smaller than the sum of its proper divisors (24444455223380).

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

22222101222220 is a wasteful number, since it uses less digits than its factorization.

22222101222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425697 (or 3425695 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22222101222220 its reverse (2222210122222), we get a palindrome (24444311344442).

The spelling of 22222101222220 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty".