22120000221 has 8 divisors (see below), whose sum is σ = 32174545824. Its totient is φ = 13406060720.

The previous prime is 22120000141. The next prime is 22120000277. The reversal of 22120000221 is 12200002122.

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

It is a cyclic number.

It is not a de Polignac number, because 22120000221 - 2⁷ = 22120000093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22120000197 and 22120000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120000291) 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 7 ways as a sum of consecutive naturals, for example, 335151486 + ... + 335151551.

It is an arithmetic number, because the mean of its divisors is an integer number (4021818228).

Almost surely, 2^22120000221 is an apocalyptic number.

It is an amenable number.

22120000221 is a deficient number, since it is larger than the sum of its proper divisors (10054545603).

22120000221 is a wasteful number, since it uses less digits than its factorization.

22120000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670303051.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22120000221 its reverse (12200002122), we get a palindrome (34320002343).

The spelling of 22120000221 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.