222220001322 has 24 divisors (see below), whose sum is σ = 525247276320. Its totient is φ = 67339394280.

The previous prime is 222220001321. The next prime is 222220001357. The reversal of 222220001322 is 223100022222.

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 = 222220001295 and 222220001304.

It is not an unprimeable number, because it can be changed into a prime (222220001321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561161422 + ... + 561161817.

It is an arithmetic number, because the mean of its divisors is an integer number (21885303180).

Almost surely, 2^222220001322 is an apocalyptic number.

222220001322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222220001322 is an abundant number, since it is smaller than the sum of its proper divisors (303027274998).

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

222220001322 is a wasteful number, since it uses less digits than its factorization.

222220001322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122323258 (or 1122323255 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222220001322 its reverse (223100022222), we get a palindrome (445320023544).

The spelling of 222220001322 in words is "two hundred twenty-two billion, two hundred twenty million, one thousand, three hundred twenty-two".