22221222201 has 48 divisors (see below), whose sum is σ = 33377011200. Its totient is φ = 14234313600.

The previous prime is 22221222181. The next prime is 22221222203. The reversal of 22221222201 is 10222212222.

22221222201 is a `hidden beast` number, since 22 + 221 + 222 + 201 = 666.

It is not a de Polignac number, because 22221222201 - 2⁶ = 22221222137 is a prime.

It is a super-2 number, since 2×22221222201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22221222203) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 20145616 + ... + 20146718.

It is an arithmetic number, because the mean of its divisors is an integer number (695354400).

Almost surely, 2^22221222201 is an apocalyptic number.

It is an amenable number.

22221222201 is a deficient number, since it is larger than the sum of its proper divisors (11155788999).

22221222201 is a wasteful number, since it uses less digits than its factorization.

22221222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1843 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22221222201 its reverse (10222212222), we get a palindrome (32443434423).

The spelling of 22221222201 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".