22212001222 has 8 divisors (see below), whose sum is σ = 33319218456. Its totient is φ = 11105595072.

The previous prime is 22212001213. The next prime is 22212001241. The reversal of 22212001222 is 22210021222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22212001222² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22212001196 and 22212001205.

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 3 ways as a sum of consecutive naturals, for example, 128928 + ... + 247075.

It is an arithmetic number, because the mean of its divisors is an integer number (4164902307).

Almost surely, 2^22212001222 is an apocalyptic number.

22212001222 is a deficient number, since it is larger than the sum of its proper divisors (11107217234).

22212001222 is a wasteful number, since it uses less digits than its factorization.

22212001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405542.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22212001222 its reverse (22210021222), we get a palindrome (44422022444).

The spelling of 22212001222 in words is "twenty-two billion, two hundred twelve million, one thousand, two hundred twenty-two".